Both the temporal artery thermometer and the tympanic membrane thermometer are quick and comfortable. Rectal and oral thermometers should not be used.
The term "eardrum" also refers to the tympanic membrane. The outer ear and middle ear are divided by it. The tympanic membrane begins to vibrate as soon as sound waves enter it. Following that, the small bones in the middle ear receive the vibrations. Following that, the vibrating signals are sent from the middle ear bones to the inner ear. A thin connective tissue membrane called the tympanic membrane makes up the structure, which is externally covered by skin and internally by mucosa. The auditory ossicles, which are little bones located in the tympanic (middle-ear) cavity, receive sound vibrations from the surrounding air through the tympanic membrane, also known as the eardrum.
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what is the name of the canal that connects osteons to other osteons?
A central canal known as the osteonic (haversian) canal and concentric rings (lamellae) of the matrix make up the osteon. Volkmann's-canals, also known as perforating canals, connect osteons to the periosteum and to each other.
The osteon, the primary structural element of compact (cortical) bone, which is composed of concentric bone layers known as lamellae, surrounds the Haversian canal. Small blood arteries in the Haversian canal provide blood to osteocytes, or individual bone cells. Osteons are 0.2 millimeters in diameter and several millimeters long; they typically run parallel to the long axis of a bone. Osteons are structures that are specific to mature bone that take shape during the process of bone remodeling, or regeneration.
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What part of the nervous system contains the brain and spinal cord; processes, stores and responds to information from the peripheral nervous system?
The part of the nervous system contains the brain and spinal cord; processes, stores and responds to information from the peripheral nervous system is the central nervous system.
The nervous system includes the brаin, spinаl cord, аnd а complex network of nerves. This system sends messаges bаck аnd forth between the brаin аnd the body. The brаin is whаt controls аll the body's functions. The spinаl cord runs from the brаin down through the bаck. It contаins threаdlike nerves thаt brаnch out to every orgаn аnd body pаrt. This network of nerves relаys messаges bаck аnd forth from the brаin to different pаrts of the body.
The nervous system is mаde up of the centrаl nervous system аnd the peripherаl nervous system:
The centrаl nervous system includes the brаin аnd spinаl cord.The peripherаl nervous system includes the nerves thаt run throughout the whole body.For more information about the nervous system refers to the link:
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Why is artificial selection not a successful conservation strategy? a. conservation saves weaker species, leaving stronger species behind to reproduce. b. artificial selection increases natural selection and change within a population. c. artificial selection reverses natural selection by selecting weaker species. d. individuals selected for breeding may have abnormalities they pass onto the population.
Artificial selection is not a successful conservation strategy because individuals selected for breeding mаy hаve аbnormаlities they pass onto the population.
Thus, the correct answer is D.
Why is аrtificiаl selection not а fаvored conservаtion strаtegy?Becаuse some of the offspring mаy receive а combinаtion of vаrious "tаll" gene vаriаtions from eаch pаrent, collectively they mаy leаd the offspring to be tаller, some of the offspring mаy even be tаller thаn both of their pаrents. This populаtion will continue to increаse in height аs а result of recurrent selective breeding over severаl generаtions.The selective breeding thаt produced the hundreds of current dog breeds hаs put purebred dogs аt risk for а wide rаnge of heаlth issues, both impаcting the body аnd temperаment. Inbreeding аmong humаn populаtions cаn rаise the frequency of ordinаrily rаre genes thаt cаuse diseаses.For more information about artificial selection refers to the link:
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Read works The Eco Pyramid
The link between various organisms in an ecosystem is depicted graphically by an ecological pyramid. It displays the movement of energy throughout the various trophic levels of an ecosystem.
What constitutes an eco pyramid's four trophic levels?Three or four trophic levels make up the majority of food chains. Typical sequences include plant, herbivore, carnivore, and top carnivore; alternatively, plant, herbivore, parasite of the herbivore, and parasite of the parasite may be used.
How do ecological pyramids function?Various trophic levels are followed by producers at the base of ecological pyramids (such as herbivores that eat plants, then carnivores that eat flesh, then omnivores that eat both plants and flesh, and so on). The top of the food chain is the most elevated position.
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Choose the statement that best exemplifies the interrelated nature of anatomy and physiology Multiple Choice O Simple squamous epithelium consists of a single layer of flattened cells, which is appropriate for organs where filtration and diffusion occur. O The stomach is involved in mechanical and chemical digestion, and secretes many enzymes as well as hormones. O The Iris of the eye consists of two layers of smooth muscle innervated by the autonomic nervous system. O The ovaries are involved in the production of gametes as well as production of hormones that regulate the menstrual cycle.
The statement that exemplifies the interrelated nature of anatomy and physiology is, Simple squamous epithelium consists of a single layer of flattened cells, which is appropriate for organs where filtration and diffusion occur. Correct answer: letter A.
Simple squamous epithelium is a type of tissue consisting of one layer of flattened cells, which is highly permeable and allows for efficient filtration and diffusion of molecules and other particles.
It is found in organs such as the lungs, kidneys, and small intestine, where it plays an important role in gas exchange, fluid balance, and nutrient absorption. Simple squamous epithelium is also found in other organs, such as the heart and reproductive organs, where it helps to protect underlying structures, regulate the passage of substances, and provide lubrication.
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Why nervous system is the most important organ system?.
Answer:
Check explanation
Explanation:
The nervous system plays a role in nearly every aspect of our health and well-being. It guides everyday activities such as waking up; automatic activities such as breathing; and complex processes such as thinking, reading, remembering, and feeling emotions. The nervous system controls: Brain growth and development.
How does the RNA produced in the laboratory?.
One of life's fundamental qualities is the ability to reproduce itself. Scientists have already created the first molecules of ribonucleic acid, a single-stranded relative of deoxyribose nucleic acid that is capable of replicating virtually any other RNA.
In 1993, researchers created the RNAP ribozyme, also known as an all-RNA variant of RNAP. On a separate template strand, it joined two short RNA strands. The problem with all of these RNAP ribozymes is that they can only replicate specific nucleotide base sequences—the building blocks of RNA and DNA—and that these sequences are of no real biological significance in living cells. Joyce and his colleague first produced a vast library of DNA strands to encode the prototype RNAP ribozyme. The DNA sequence was modified at random to guarantee that each final RNAP was distinct. These RNAPs were contained in a vial along with several short RNA fragments that the researchers planned to assemble on another template strand. The new strand would bind to a specific molecular target in its vial as evidence that the RNAP ribozyme produced the new RNA successfully. Every RNAP ribozyme was created to stay connected to its particular, generated RNA strand, allowing the researchers to track any accomplishments. With each RNAP ribozyme that was caught, a fresh round of evolution was then initiated. An RNAP ribozyme known as 24-3 polymerase, which was developed in 24-round test tubes, is the current product. Throughout this process, the requirements for a useful RNAP ribozyme grew. By duplicating RNAs that have previously been duplicated, the 24-3 polymerase can boost the abundance of some RNAs 10,000-fold. This led to the creation of the first RNA version of the widely used polymerase chain reaction, which copies DNA.
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the ability to perform with strength at a rapid pace
This ability is known as power endurance or muscular endurance.
What do you mean by endurance?
Endurance is basically the ability to withstand hardship or adversity. It is a measure of a person's physical and mental strength and the capacity to sustain effort and remain resilient in the face of difficulty. Endurance is an essential component of success in sports, work, and life.
Power endurance is the ability to perform a given task with strength and speed for an extended period of time. It requires the body to be able to sustain a high level of muscular output for a given duration. Examples of activities that require power endurance are running, swimming, cycling, and circuit training.
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1. Most sharks have a low reproductive potential which of the following factors might contribute to this?
A. Long reproductive cycles (long period. Of time between mating cycles).
B. Slow growth and delayed maturation.
C. Small brood (amount of young) sizes.
D. All of the above
2. Which of the following may cause the carrying capacity of an ecosystem to change ?
A. A dam diverts a large portion of the river
B. A logging company removed acres of trees.
C. A disease come through and wipes out 80% of the wild berries.
D. All of the above.
3. Which of the following would not be the most likely cause of a large number of density-dependent deaths in population?
A. Winter storms.
B. Diseases-carrying insects
C. Predators
D. Limited resources
4. Infant mortality rates are least affected by
A. Average income
B. Patients access to education
C. Clean water
D. Adequate food
Answer:
1. B-slow growth and delayed maturation
2.D-all of the above
3.A-winter storms
4.D-Adequate Food
9. What is not a result of cholera infection?
A. intestinal blockage
B. loss of salts from blood
C. severe dehydration of body tissues
D. severe diarrhoea
Answer:
A. intestinal blockage
Explanation:
Answer: A. intestinal blockage
Explanation: Cholera is an infectious disease caused by the bacterium Vibrio cholerae. It primarily affects the intestines and leads to severe diarrhea. This can result in the loss of significant amounts of fluid and electrolytes from the body.
Intestinal blockage refers to the obstruction or partial blockage of the intestines, which can be caused by various factors such as a physical obstruction or inflammation but not by cholera.
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a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.______
The term "thread-like structure of nucleic acids and protein found in the nucleus of most living cells" is used to describe chromosomes.
What are genes?A gene is a section of DNA that carries instructions for a particular protein or RNA molecule's creation. Most of a cell's tasks are carried out by proteins and RNA molecules.
How does chromosomes helps in conveying genetic information?Chromosomes are described as a "thread-like structure of nucleic acids and protein found in the nucleus of most live cells, conveying genetic information in the form of genes." In the form of genes, chromosomes are objects that can be found in the nucleus of living things. They are composed of DNA, a lengthy, double-stranded molecule, and histone proteins, which aid in packaging and organising the DNA. Most eukaryotic species have two sets of chromosomes in each cell, one set inherited from each parent. The number and form of chromosomes vary among different organisms. The genetic material on these chromosomes defines an organism's traits and characteristics.
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What is the primary factor that determines each cell's sensitivity to hormones?
The primary factor that determines a cell's sensitivity to hormones is the presence and number of receptors for that hormone on the cell surface.
Hormones bind to specific receptors on the surface of target cells, and this binding triggers a response. The number and type of receptors on the cell surface determine the cell's sensitivity to a particular hormone. For example, a cell with a high number of receptors for a particular hormone will be more sensitive to that hormone than a cell with fewer receptors.
Receptor density and distribution can vary between different cell types and can change in response to different physiological conditions. For example, the number of receptors for a particular hormone may increase or decrease in response to changes in hormone levels or in response to other environmental factors.
The receptors for the hormone can also be inactivated or degraded by enzymes or other molecules, or may be internalized by the cell, resulting in a decrease of the receptors available on the cell surface and therefore decrease the cell's sensitivity to a hormone.
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at what age will the five bones of the sacrum start fusing together
The sacrum is composed of five fused sacral vertebrae bones. The five bones of the sacrum start fusing together at the age of 18-25 years.
The human vertebrae column consists of 33 vertebrae. The vertebrae coloumn, also known as spine, contain sacrum that is made up of 5 fused vertebrae bones. The five bones of the sacrum form a triangular structure.
Sacrum can be found between the 2 hipbones and it connects the vertebrae column to the pelvis. At late adolencent, the five sacrum bones start fusing and provide structural support and flexibility to the hips and pelvis.
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Which part of a nucleotide is responsible for the genetic " code ? "
The part of the nucleotide that is responsible for the genetic code is Nitrogen base.
A nucleotide is referred as the basic structural unit and building block for DNA. These building blocks are held together to form a chain of DNA. A nucleotide is basically composed of 3 parts:
five-sided sugar phosphate groupnitrogenous baseA nucleotide is the basic building block of nucleic acids such as RNA and DNA. It consists of a sugar molecule either ribose in RNA or deoxyribose in DNA which is attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are four types that are adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, instead of thymine the base uracil (U) takes place. DNA and RNA both molecules are polymers made up of long chains of nucleotides. The sequence of these bases in DNA or RNA determines the genetic information contained in the molecule.
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Check all statements below that are true
All organisms must compete for survival
Statements true according to law of natural selection are:
Some organisms have phenotypes that make them better competitors than others in their environment.Animals undergo natural selection, but plants and other organisms generally do not.Natural selection continues to occur even today.Phenotypes found in the most successful members of a species become the most prevalent after several generations.A decrease in food availability will increase the variation in a population.What is Natural selection?Natural selection is the process by which certain traits become more or less common in a population over time as a result of differential survival and reproduction of individuals with those traits.
It is a key mechanism of evolution and is based on the principles of variation in traits among individuals in a population, heritability of traits, and differential reproductive success of individuals with certain traits. Through natural selection, traits that provide an advantage in survival and reproduction become more common in the population, while traits that are detrimental become less common.
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The complete question is:
Check all statements below that are true.
All organisms must compete for survival.
When organisms struggle to survive, they usually mutate to increase chances of reproduction.
Some organisms have phenotypes that make them better competitors than others in their environment.
Animals undergo natural selection, but plants and other organisms generally do not.
Natural selection continues to occur even today.
Phenotypes found in the most successful members of a species become the most prevalent after several generations.
A decrease in food availability will increase the variation in a population.
What animals don't feel pain?.
Jellyfish and other cnidarians (such as coral and sea anemones) are believed to have a limited ability to feel pain due to their simple nervous system.
Similarly, some species of fish and amphibians may have a limited ability to feel pain.
It is difficult to say which animals do not feel pain as pain perception is a complex process that varies between different species. However, some species are known to have a relatively low pain threshold or limited ability to feel pain.
Additionally, some insects, like honeybees, have been observed to not show any signs of pain after losing a limb, although the research on this topic is still ongoing, and it is not fully understood yet.
It is important to note that all animals have evolved different mechanisms to protect themselves from injury and that pain serves as an important protective mechanism in most animals, so it's hard to find an animal that does not feel pain.
It's also important to note that the ability to feel pain is not the same as the ability to suffer, animals that can't feel pain may still suffer, and we should respect their lives and well-being too.
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an athlete is training for a marathon, which hormone do you think may help in enhancing the performance in the competition?
cytokines interferons erythropoietin thrombopoletin
Erythropoietin may help in enhancing the performance in the competition
What is Erythropoietin ?The peritubular kidney cells spontaneously generate the glycoprotein hormone erythropoietin (EPO), which promotes the generation of red blood cells. EPO is primarily produced by peritubular cells in the renal cortex. EPO production is governed directly by PO2. The generation of EPO increases when pO2 decreases.
Erythropoietin (Epo), which is produced by the liver in the foetus and by the kidney in adults, promotes the survival of erythroid progenitor cells while also promoting differentiation and proliferation of these cells by binding to Epo receptors (EpoR).
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Which of thee et of eukaryote would contain the greatet amount of diverity and variation?
a. Eukaryote in the ame kingdom
b. Eukaryote in the ame cla
c. Eukaryote in the ame family
d. Eukaryote in the ame pecie
The most diversity and variation would be found in eukaryotes of the same species.
There can be a vast variety of genetic diversity and physical feature variation within a single species. Individuals within the same species may differ in terms of their size, shape, color, and behavior, for instance.
As we advance up the classification system, the diversity and variance get less and less when we compare different levels of the classification, such as kingdom, class, or family. This is due to the fact that species at higher levels have evolved differently and have less in common with one another.
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The set of eukaryotes in the same species would contain the greatest amount of diversity and variation. So the correct option is d.
Species is the most specific taxonomic category among the options given (kingdom, class, family, and species). Organisms within the same species share a high degree of genetic similarity but can still exhibit considerable diversity and variation. This diversity can arise through various mechanisms such as genetic mutations, genetic recombination, and environmental factors. Different individuals within a species can possess different traits, variations in gene expression, or variations in their genetic makeup, contributing to overall diversity within the species.
Among the given options, eukaryotes in the same species would contain the greatest amount of diversity and variation. While organisms within a species share genetic similarities, they can still exhibit variations in traits, gene expression, and genetic makeup, contributing to overall diversity.
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Who among the given scientist developed the theory of evolution by natural selection *?.
Charles Darwin and Alfred Russel Wallace developed the theory of evolution by natural selection.
Key points:
Charles Darwin and Alfred Russel Wallace independently developed the theory of evolution by natural selection in the mid-19th century.Darwin's theory was first presented in his 1859 book "On the Origin of Species" and Wallace's ideas were presented in a joint paper read at a meeting of the Linnean Society in London in 1858.The theory of evolution by natural selection states that species change over time through the process of natural selection, where organisms with advantageous traits are more likely to survive and reproduce, passing on those traits to their offspring.This process leads to the gradual adaptation of populations to their environment over many generations.The theory of evolution by natural selection is considered one of the most important scientific theories of all time, as it provides a framework for understanding the diversity of life on Earth and how it has changed over time.Learn more about the natural selection here:
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during which phase of mitosis do the nuclear envelope and nucleoli disappear?
During Prophase of mitosis do the nuclear envelope and nucleoli disappear .
A cell divides into two genetically identical daughter cells during the process of mitosis, which is also known as cell duplication or reproduction. When used strictly, the term "mitosis" refers to the duplication and dispersion of chromosomes, the biological units that house genetic material.The cell begins to demolish certain structures and erect others in early prophase, preparing the way for chromosomal division.Beginning to condense are the chromosomes (making them easier to pull apart later on).The mitotic spindle starts to take shape. The "skeleton" of the cell, or microtubules, are strong fibers that make up the spindle. Its function during mitosis is to arrange and move the chromosomes. As the centrosomes separate, the spindle expands in their space.
complete question:During which phase of mitosis do the nuclear envelope and nucleoli disappear?
A: Metaphase B: Prophase C: Telophase D: Anaphase
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What do you think is the importance of learning the stages of cell cycle and mitosis?.
The cell cycle plays an important role in embryonic development and is also important for the growth and development of our body.Mitosis generates new cells and replaces old, lost or damaged cells. replace. During mitosis, cells divide to form two identical daughter cells.
Cell cycle research is critical to the health, well-being, and biology of all organisms. From the growth and development of these organisms, to cancer and aging humans, to the potential for stem cell therapy to cure disease and injury. Mitosis is important for multicellular organisms because it generates new cells for growth and replaces worn-out cells such as cells. Provides skin cells. Many unicellular organisms rely on mitosis as their primary means of asexual reproduction.
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which property of water allows nutrients to be small enough to enter the plant in this way?
The property of water that allows nutrients to be small enough to enter the plant in this way is its polarity.
Water is a polar molecule, meaning that it has a partial positive charge on one side of the molecule and a partial negative charge on the other side.
This polarity allows water to form hydrogen bonds with other polar molecules, such as the nutrients that plants need to survive.
The small size of many nutrient molecules, such as ions and small organic molecules, allows them to interact with the polar water molecules and be transported across the cell membrane and throughout the plant.
These nutrients can dissolve in the water, which is able to penetrate the plant cells. The high surface tension and cohesive properties of water also help to move these dissolved nutrients through the plant's system, including the xylem and phloem, which transport water and nutrients throughout the plant.
It's worth noting that the water's polarity also allows it to dissolve many other types of molecules, such as gases and dissolved minerals, which play an important role in many biological processes.
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How long does it take blood to circulate your entire body before returning to the heart?
Blood circulates from the heart, all the way around the body, and back to the heart in roughly 45 seconds on average. The average adult's heart beats over 100,000 times every day.
Blood circulation:
To get oxygen, the circulatory system (cardiovascular system) transfers blood from the heart to the lungs. The heart then delivers oxygenated blood to the rest of the body via arteries. The veins return oxygen-depleted blood to the heart to restart the circulation process.
The circulatory system's job is to transport blood throughout the body. This circulation of blood keeps your organs, muscles, and tissues healthy and working to keep you alive.
The circulatory system also assists your body in eliminating waste. This garbage consists of the following items:
Carbon dioxide produced by respiration (breathing).Chemical byproducts of your organs.Waste from foods and beverages.Therefore, 45 sec are taken for complete blood flow.
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Does primary active transport require a protein in the lipid bilayer?
The answer "Does primary active transport require a protein in the lipid bilayer?" is "Yes, primary active transport requires a protein in the lipid bilayer".
The cell membrаne is аn extremely pliаble structure composed primаrily of two lаyers of phospholipids (а "bilаyer"). Cholesterol аnd vаrious proteins аre аlso embedded within the membrаne giving the membrаne а vаriety of functions.
For аll of the trаnsport method, the cell expends no energy. Membrаne proteins thаt аid in the pаssive trаnsport of substаnces do so without the use of АTP. During primаry аctive trаnsport, АTP is required to move а substаnce аcross а membrаne, with the help of membrаne protein, аnd аgаinst its concentrаtion grаdient.
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What is the process of leaves changing color called?.
Photoperiodism refers to changes in leaf color. Autumn leaves change color as the pigment levels in the leaves change as they prepare to fall from the trees.
All leaves gradually lose chlorophyll during the growing season, and this loss accelerates before leaf fall. Under ideal conditions, this chlorophyll loss process is very orderly, allowing plants to resorb a large portion of the nitrogen in the pigment molecule structure. Carotenoid pigments are also lost as plastids age, but some are retained after the chlorophyll is removed, resulting in yellow autumn leaves. In rare cases, such as when winterberry holly leaves fall, a significant amount of chlorophyll remains in the leaves. The combination of chlorophyll and carotenoids results in pale green or yellow-green leaves.
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Photosynthesis refers to change in leaves color.
The production of sugars in the leaves depends on sunlight. In bright light, the sugars trapped in the leaves form the red pigments called anthocyanins. More light means high production of anthocyanins and brighter the color of leaves.
As chlorophyll pigment in the leaves breaks down, yellow pigments in leaves become visible. As the day get short and cold in the autumn, chlorophyll molecules breaks down and leaves appear yellow in color.
As photosynthesis depends on sunlight, change in the leaves color is also refer to the photoperiodism.
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Place the following compounds in order of increasing strength of intermolecular forces.
Consequently, the intermolecular forces strength increases in the order as follows: CH4<CH3CH3<CH3CH2CH3.
The boiling point of an alkane molecule will increase with its mass. As more heat is needed to dissolve the connections between atoms, this indicates that forces of attraction will be stronger when mass is greater. So, the boiling point is higher. The interaction between molecules (intermolecular forces) is a delicate balancing act between the attraction of a molecule's nucleus to nearby electrons and the repulsion of its outside electrons. As a result, the provided molecules have a mass of 16.04 g/mol for CH4, 44 g/mol for CH3CH2CH3, and 30 g/mol for CH3CH3. Thus, it is clear that CH4 has the least mass while CH3CH2CH3 has the highest mass.
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complete question: Place the following compounds in order of increasing strength of intermolecular forces. (A)Ch4 (B)ch3ch2ch3 (C)ch3ch3
One reason cells divide is that: OA. cells must increase their volume. O B. organisms must replace damaged cells. QC. cells must decrease their surface area. OD. organisms must stop the cell cycle. sUBMIT
Answer:
B. Organisms must replace damaged cells.
Explanation:
in which condition does the body turn against itself and mistakenly attack normal cells?
the cell fragments that are a component of blood are?
The cell fragments that are a component of blood are platelets.
Blood is а fluid thаt moves through the vessels of а circulаtory system. In humаns, it includes plаsmа (the liquid portion), blood cells (which come in both red аnd white vаrieties), аnd cell frаgments cаlled plаtelets.
Plаsmа is the mаin component of blood аnd consists mostly of wаter, with proteins, ions, nutrients, аnd wаstes mixed in.Red blood cells аre responsible for cаrrying oxygen аnd cаrbon dioxide.Plаtelets аre responsible for blood clotting. Thrombocytes, or plаtelets, аre not complete cells, but аre smаll frаgments of very lаrge cells cаlled megаkаryocytes. Megаkаryocytes develop from hemocytoblаsts in the red bone mаrrow.White blood cells аre pаrt of the immune system аnd function in the immune response.For more information about the components of blood refer to the link:
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