Answer:
kill cells and tissues outright
Explanation:
Sometimes bacteria multiply so rapidly they crowd out host tissues and disrupt normal function. Sometimes they kill cells and tissues outright. Sometimes they make toxins that can paralyze, destroy cells' metabolic machinery, or precipitate a massive immune reaction that is itself toxic
Acrroding to http://needtoknow.nas.edu/id/infection/how-pathogens-make-us-sick/
Axons from higher brain centers form motor tracts that descend from the brain into the white matter of the spinal cord and then synapse with somatic motor neurons in the ____________.
Motor output that is gotten from the spinal cord to skeletal muscles involves somatic motor neurons of the anterior gray horn. Many somatic motor neurons are regulated by the brain. Axons from higher brain centers form motor tracts that descend from the brain into white matter of spinal cord and then synapse with somatic motor neurons either directly or indirectly by first synapsing with interneurons that in turn synapse with somatic motor neurons.
Sensory receptors is known to detect sensory stimulus.
Sensory neurons often convey sensory input by nerve impulses through their axons. Their axon often start from sensory receptors into the spinal nerve and into posterior root.
From posterior root, axons of sensory neurons have 3 different choices of paths.
Axons of sensory neurons does start into the white matter of the spinal cord and moves up to brain as part of sensory tract.Axons of sensory neurons sometimes do moves into the posterior gray horn and synapse with interneurons that has its axons extend into the white mater of spinal cord and thereafter moves to brain as sensory tract.Axons of sensory neurons oftens moves into the posterior gray horn and synapse with interneurons which the synapse with somatic motor neurons.Axons that is gotten from spinal cord often synapse with other motor neurons in PNS.
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when they find these similarities they conclude that these organisms have a common
Answer:
Every living creature has DNA
Explanation: hope this helps
a freshwater plant is placed in a container of salt water what will most likely happen to cells of the plant
Answer:
They will shrink because water will move out of them.
Explanation:
They will shrink and it will cause the plant to die
Which soil-based compounds do plants use to create amino acids from glucose?
Answer:
Nitrates are the soil-based compounds plants use to create amino acids from glucose
Explanation:
Nitrates soil-based compounds do plants use to create amino acids from glucose.
The space that an organism in an ecosystem lives in is called a
A) community
B) population
C) habitat
D) niche
llo
Answer:
Answer C) Habitat.....
Which of the following steps is required to break down pharmaceuticals, pesticides, and heavy metals in wastewater?
Aeration open basins
Chlorination and ozonation
Biological nutrient removal
Grit and bar screening
In order to remove the listed substances from wastewater, processes such as Chlorination and ozonation are most often used.
Chlorination is a process used in the purification of wastewater in order to achieve clean water that may be used for consumption or other uses. The process of chlorination exposes the wastewater to chlorine in an attempt to eliminate bacteria, viruses, and other potentially harmful substances and organisms from the water.
Much like chlorination, ozonation is a similar process used to purify wastewater. In contrast to the previous method, however, ozonation exposes the water to ozone. Though ozonation is safer and much more effective, these processes are often used together to eliminate harder to tackle elements such as
pharmaceuticalspesticidesheavy metalsand more from wastewater, which may not be removed by just one process alone.
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Is the circled karyotype a male or female?
female
male
Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.
Explanation:
Which of the following are molecules? (Select all that apply.)
K
MgCl2
H2
Mg
Grade -5-
Answer:
MgCI2
H2
Explanation:
any combination of elements is a molecule
The tall allele is dominant and the dwarf allele is recessive. What is the abbreviation for the dwarf allele
Answer:
t
Explanation:
really just lowercase but I would you T,t because your talking about being tall or dwarf so you need to know that the T is tall and the t is dwarf
Hope this helped
define active transport in your own words
Answer: Define Active transport
Explanation: The moving of molecules or ions across the cell membrane.
Hope this helps!
Chitin is all of the following EXCEPT ________. Found in insect and crustacean shells Composed of N-acetylglucosamine subunits Composed of linear fibrils like cellulose Found in plant cell walls
Answer:
Found in plant cell walls
Chitin is all of the following except it is found in the plant cell wall. So, the correct option is D.
What do you mean by Cell wall?It is the outermost layer of a cell that can be tough, flexible, and sometimes rigid. Its function is to provide structural support and protection to the complete cell.
The Cell-wall of fungi is made up of chitin. It is composed of N-acetylglucosamine subunits. It is also composed of linear fibrils like cellulose. Mostly, found in insect and crustacean shells.
Therefore, Chitin is all of the following except it is found in the plant cell wall.
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Which two body systems control homeostasis?.
Answer:
The two body systems that control homeostasis are the nervous system and the circulatory system.
Explanation:
The nervous system controls everything you do, including voluntary and involuntary actions, and the circulatory system transports important nutrients to your cells to maintain a stable inner environment.
Which part of the vascular system functions as a blood reservoir and contains over 60% of the body's blood
Answer:
Veins are also called capacitance vessels because they contain 60% of the body's blood volume.
Explanation:
Hope I could help.
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I am thinking of an animal that kind of looks like a raccoon, and starts with an A. With just that information: what is the common name for that organisim.
Answer:
Armadillo
Explanation:
Which molecule is needed for photosynthesis to occur?
glucose
oxygen
carbon dioxide
nitrogen
Answer:
The answer is Carbon Dioxide/co2
Explanation:
For a clearer response, carbon dioxide is one of the substances needed for the process of photosynthesis. Oxygen is not essential because that molecule is what is being released. Glucose is the molecule being produced.
which organism is made up of one prokaryotic cell?
Answer:
Bacteria
Explanation:
what is most likely the cause of this difference from the rest of the population
Answer:
Gene mutation is most likely the cause of this difference from the rest of the population. Log in for more information.
Explanation:
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How does carbon dioxide enter leaves?
predict what would happen if the lac repressor were altered so it could not release lactose once lactose was bound to it.
What are organelles.
Organelles are specialized structures that perform various jobs inside cells.
What is the molecule that leaves the calvin cycle to be converted into glucose?.
Answer:
G3P Molecules
Explanation:
The molecules of ADP and NAD+, resulting from the reduction reaction, return to the light-dependent reactions to be re-energized. One of the G3P molecules leaves the Calvin cycle to contribute to the formation of the carbohydrate molecule, which is commonly glucose (C6H12O6).
The gel below shows a result of the experiment you designed using the DNA of three different individuals (S1-S3). It also shows a negative (C-) and a positive (C ) control, as well as a DNA marker. Why did S2 have three bands
Restriction enzymes recognize specific nucleotidic sequences. The molecule with no recognition site will not be digested. Individual S2 probably had molecules with the recognition site and others with a different sequence.
--------------------------
A restriction enzyme is a degradative polymer that recognizes and cuts up specific nucleotide sequences in DNA.
Restriction enzymes can produce cohesive cuts or blunt (abrupt) cuts, depending on the recognition sites.
The frequency in which the restriction enzyme will produce the cuts depends on the recognition sequences and the number of bases that compose them.
So restriction enzymes cut DNI molecules into different short sequences of varying lengths.
These pieces are called minisatellites and exhibit the existing variation from one person to the next.
These short sequences can be separated by using gel electrophoresis and will express a pattern of differentiation.
When the nucleotidic sequence of the DNA molecule does not include the recognition site, the enzyme will not cut this fragment. The enzyme does not digest this molecule.
Since the negative control does not have a recognition site, it is not digested by the enzyme.
The positive control is digested, meaning that these molecules carry the recognition site.
Probably DNA molecules from individual S1 do not have the recognition site either.
The enzyme recognizes the sequence in DNA from individual S3 and cuts it into two fragments.
The lane of Individual S2 includes both options: digested and not digested DNA. This means that the sample taken from this individual included DNA
⇒ carrying the sequence, and
⇒ not carrying the recognition sequence.
So enzymes digest molecules carrying the recognition sequence, and the other ones remain undigested.
Probably, individuals S1 and S3 are h0m0zyg0us, while individual S2 is heter0zyg0us.
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Which option(s) correctly describes chromosomes?
Chromosomes consist of tightly coiled DNA wrapped around proteins called histones
Each chromosome has one gene
Chromosome pairs contain completely different genes
Most human cells have two copies of each chromosome - one from each parent.
Answer:In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
Each chromosome has a constriction point called the centromere, which divides the chromosome into two sections, or “arms.” The short arm of the chromosome is labeled the “p arm.” The long arm of the chromosome is labeled the “q arm.” The location of the centromere on each chromosome gives the chromosome its characteristic shape, and can be used to help describe the location of specific genes.
NO Links!!, Please HURRY How does the frequency of a wave relate to the wave's wavelength?
O The higher the frequency, the shorter the wavelength. This is because they have a direct relationship.
O The higher the frequency, the longer the wavelength. This is because they have a direct relationship.
O The higher the frequency, the shorter the wavelength. This is because they have an inverse relationship.
O The higher the frequency, the longer the wavelength. This is because they have an inverse relationship.
Answer:
Explanation:
What questions should you ask when analyzing how a character develops a theme? Check all that apply.
How does the character react to conflict?
How is the character changed by conflict?
When does the climax occur in a play?
Is the theme relatable to people around the world?
What lessons does the character learn based on the resolution of the conflict?
If the individuals in a population mate at random, and if allele h1 is at frequency 0. 60, what is the frequency of h1h1 offspring?.
Answer: Frequencies of two alleles in a gene pool before and after many random matings
Explanation:
Frequencies of two alleles in a gene pool before and after many random matings
The allele frequency of h1h1 in offspring is 0.36 if individuals in the population mate at random, the allele of interest is divided by the total number of copies of all the alleles.
What is the frequency of the allele?The number of times the allele of interest is detected in a population is divided by the total number of copies of all the alleles at that particular genetic locus in the population to compute the allele frequency.
In a population, if individuals mate at random sampling if h1 has a frequency of 0.60, the frequency of h1h1 offspring is 0.36, in the population.
The frequency of alleles can be expressed as a decimal, a percentage, or a fraction. Allele frequencies vary from 0 (present in no people) to 1 (present in all individuals); in a population, all allele frequencies for a particular gene add up to 100%.
Therefore 0.36 is the frequency of h1h1 in the population for individuals at random mates for h1 frequency of 0.60 in the population.
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in humans, how does the circulatory system bring oxygen to every cell in the body?
Answer:
I found this in a science text, hope it helps.
Explanation:
"Blood from the heart is pumped throughout the body using blood vessels. Arteries carry blood away from the heart and into capillaries, providing oxygen (and other nutrients) to tissue and cells. Once oxygen is removed, the blood travels back to the lungs, where it is reoxygenated and returned by veins to the heart."
Basically, blood from the heart is taken away by arteries and then into capillaries, transferring oxygen to cells.
I hope I could help!
The circulatory system of human body brings about oxygen to the every cell by the help of blood. The heart of human body helps to pump up the blood with oxygen and makes it oxygenated.
What is the size of a human heart ?A size of a human heart is a size of a human fist it has 4 chambers where with 2 auricles and 2 ventricles. The auricles receive the oxygenated blood and the ventricles get the deoxygenated blood.
The human heart is bringing oxygen to the cells of the body where the oxygen combined with the Fe component that is iron of the blood and reaches every cell of the blood through the blood. Blood is transported to every cell of the body through the blood vessels.
Arteries carry the oxygenated blood and ventricles carry the deoxygenated blood where the blood that reaches the cellular level by the veins and the arteries along with the blood vessels that form a network.
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which process is response for gas exchange in the lungs
Answer:
Diffusion is the spontaneous movement of gases,Explanation:
Answer:
External respiration
Explanation:
What is ONE way in which geologists may utilize GPS and satellite mapping?
A way through which geologists may utilize GPS and satellite mapping is to monitor the changes in the environment.
A global positioning system refers to a network of receiving devices and satellites that are used to determine the location of a particular thing on Earth.
It should be noted that a global positioning system (GPS) and satellite mapping can be used in monitoring changes in the environment. It can also be used to collect accurate field data when mapping or surveying.
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help help pls
choose the right letter
29. The ABO blood type gene is an example of which means that heterozygous display two phenotypes at the same time.
A. Fading
B.Incomplete dominance
C. Codominance
D. Advanced hybridism
Answer:
Codominance i believe :)
Indicate whether the statements are true (T) or false (F). ___ A ribosome is the complex within which protein synthesis occurs.
Answer:
True
Explanation:
