Answer:
their molecule movement decrease s
Explanation:
molecules move more slowly, reducing the frequency of enzyme-substrate collisions and therefore decreasing enzyme activity
Although scientists do not know the exact origin of eukaryotic cells, the ______ theory does explain the origin of the mitochondria and chloroplasts.
Explanation:
The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.
describe what a growth factor is and how it influences the cell
Answer:
Growth factors are proteins that act as mitogens to stimulate and encourage cell migration.
Explanation:
Which solution would be MOST effective at reducing the emission of greenhouse gases?
A
reducing carbon dioxide production by increasing use of mass transportation
B
reducing production of fluorinated gases by changing industrial practices
C
reducing production of methane by changing agricultural practices
D
reducing nitrous oxide production by burning less solid waste
Reducing nitrous oxide production by burning less solid waste.
It is 300 time more potent than carbon dioxide. It is emitted from agriculture, land use, transportation, industry.What is green house effect?It is a process that occurs when energy from planet's sun goes though its atmosphere and warms the planet's surface, but atmosphere prevents the heat from returning directly to space, resulting in warmer planet.
What is atmosphere?
It is a layer of gases that envelope a planet, is held in place by the gravity of the planetary body.
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Explain how a cell uses mitochondria, cell membrane, lysosomes, and vacuoles to make energy.
Answer:
How does the cell membrane and mitochondria work together to make energy?
Explanation:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
Who already watched Christmas Chronicles??
Answer:
I have and i loved it! It was so cool.
Explanation:
can someone help me on this question
Answer:
unknow
Explanation:
Can someone help me with my living earth homework
11. What occurs during the citric acid cycle?
a.
the formation of ATP
b. the release of carbon dioxide
c. the formation of FADH2
d. all of the above
Answer:
D. All of the above
End products of citric acid cycle: two GTP, six NADH, two FADH2, and four CO2
which of these disorders is when the thyroid is overactive, which leads to increased metabolism?
Answer:
Hyperthyroidism
Explanation:
When your thyroid gland generates too much of the hormone thyroxine, it causes this condition. Hyperthyroidism causes your body's metabolism to speed up, resulting in unexpected weight loss and a fast or irregular pulse.
Which of these structures are used to eliminate wastes in an earthworm?
A. Nephridia
B. Sperm ducts
C. Oviducts
Briefly summarize the structure of moss.
Mosses are bryophytes, primitive plants believed to be among the first to develop the ability to live on land. Moss plants have no vascular tubes to transfer water or nutrients, and no true stems or roots. Environmental water sources and absorption limit moss plant size.
There may be as many as 15,000 species of mosses. Although unique species of moss grow in dramatically different habitats across the planet – from the arctic to the desert – all have basically the same structure.
Basic Moss SporesThe initial moss plant is a spore given off by the sporophyte that forms at the end of the moss plant’s “stem.” Released spores travel long distances on the wind and may remain viable for decades. Moss spores landing in suitable conditions divide and produce hairy filaments called protonemas, which are like thin plant threads that weave across the growing medium. Sprouting from the spore filaments, gametophytes form, held to the surface by rhizoids.
Main Structure of MossThe main moss structure is the gametophyte, which functions like a moss’s “stem” and “leaves.” A moss "stem" is called the axis, and this part of the moss supports leaf-like structures.
Phyllids are the leaf-like structures that carry out photosynthesis, transforming sunlight into sugars the moss uses for food. Typically arranged in a spiral, moss “leaves” are usually one cell thick with ribs two or more cells thick down their centers. The cells of moss plants contain chlorophyll, the green pigment that is essential for the process of photosynthesis.
Does moss have roots? No, not really. Moss stems end in root-like strands called rhizoids, specialized to hold the moss to its growing surface. Rhizoids anchor moss plants to the surfaces they grow on, but they do not absorb water and nutrients like true plant roots.
Second-Generation GrowthThe second moss structure is really a second generation. Moss reproduction occurs sexually, using separate plants produced at different times. The two separate kinds of moss plants are called gametophytes (which produce gametes) and sporophytes (which produce spores).
Gametophytes are tipped with either inverted cone-shaped areas (archegonia) or male reproductive organs (antheridia). Released sperm (antherizoids) need water since they swim to the archegonium. This is one of the main differences between bryophytes and vascular land plants – mosses need water for their sexual reproduction process.
Fertilization occurs once an antherizoid swims to an archegonium. Sprouting from the gametophyte tip after fertilization, a sporophyte holds itself in place by anchoring a foot in the archegonium.
Spore-Bearing PartsThe sporophyte stalk, called the seta, bears the sporangium (spore capsule) on its tip. One sporangium may produce up to one million spores. Maturing spore capsules are guarded by a covering called the calyptra that shrivels and falls off when the spores are mature. The calyptra can be a distinguishing part of a moss species, and they are often useful in identifying new mosses.
A cap called the operculum tops the capsule's opening under the calyptra. The capsule opening (peristome) can have teeth that help hold it closed. Matured spores are released when the capsule top ruptures and drift off to form new plants. Like the calyptra, the operculum and peristome of some moss species are highly identifiable.
Which of the following molecules are needed for photosynthesis?
a
carbon dioxide and oxygen
b
water and carbon dioxide
c
glucose and oxygen
d
light and oxygen
Answer:
A is correct.
Explanation:
Answer:
b is correct
Explanation:
b water and co2
Why is the red blood cell disc in shape?
Answer:
Red blood cells are disc in shape because it allows the cells to flow smoothly through the narrowest blood vessels and provides flexibility to squeeze through them.
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Help plz need answer due
Thank u
Make and defend decisions regarding whether to use feed additives and growth promotants after researching and considering scientific evidence, production system needs and goals, and input from industry professionals.
Answer: Hi good evening..
No thanks
I will help whenever you need
Explanation:
Injecting hormones into young livestock can make them gain weight faster. More weight means more meat, which means more profit for the producer. Hormones also increase the production of milk by dairy cows. Hormones have been used for decades in the meat and dairy industries.
In humans, freckles are encoded by a dominant allele. A woman is heterozygous for freckles. According to the law of segregation, allele pairs separate during gamete formation and then randomly unite during fertilization. Which of the following would apply to this woman's child?
The child having an equal chance of inheriting the dominant allele or the
recessive allele for freckles from her mother is what applies.
The law of segregation by Mendel states that diploid organisms have a pair
of alleles and are passed to their offspring at random.
The woman being heterozygous means she has the dominant and recessive
allele present. Due to the law of segregation stating the alleles are passed
at random to the offspring, the child will have an equal chance of inheriting
the dominant allele or the recessive allele for freckles .
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Which definition best explains the term gene expression?
Answer:
Answer:
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. ... Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.
OR
Gene expression is. the activation of a gene leading to the transcription, translation and synthesis of a specific protein.
PLEASE IMMEDIATELY PLEASEE HELP PLEASEE
in the induced fit model, when a reactant temporarily binds to the active site of an enzyme, the enzyme __________.
Answer:
breaks down the reactant
Explanation:
Food Webs and Food Chains Worksheet
1 Look at this food chain.
lettuce
greenfly
ladybird
thrush
cat
a What does the arrow mean in a food chain?
b Name the producer in the food chain
c Name the third trophic level in the food chain.
d Name the tertiary consumer in the food chain
e What is the ultimate source of energy that drives the food chain?
Food chain is network of source energy diagram which means how one organism depends on other organism for thier enegy to alive.
a. Arrow indicates forward direction of food chain how one organism depend on other organism.
b. The producer in the food chain is Lettuce.
c. The third trophic level organism in the food chain is ladybird.
d.The tertiary consumer in the food chain is terthrush.
e. The ultimate source of energy that drives the food chain is lettuce.
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a) In a food chain, arrows show the movement of nutrients or energy from one organism to another. It refers to the direction of transfer of energy or nutrients from the organism being consumed to the organism consuming it.
b) The producer in the diagrammatic food chain is lettuce, followed by green fly, ladybug, thrush and cat. Producers—also called autotrophs—are living things that can make their own food through photosynthesis or chemosynthesis, the process by which sunlight or inorganic substances are converted into energy-rich organic molecules.
c. Ladybird is the third trophic level of the food chain. The term "trophic level" describes the place an organism occupies in a food chain or web, from where it obtains its food and energy. In this scenario the greenfly is the primary consumer at the second trophic level, while the ladybird is the secondary consumer at the third trophic level. Lettuce is the first trophic level in this scenario (producer).
d.Cat is the third largest consumer in the provided food chain. In a food chain or web, tertiary consumers are those species at the highest trophic level. Typically, they are carnivores that prey on other carnivores or secondary consumers.
e) Sun is the primary energy source that powers the food chain. Most ecosystems get their energy mostly from the sun. As the species consumes and is consumed by other organisms, it is passed along the food chain after being captured by producers (such as plants) through photosynthesis.
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Which of the following choices is not among the most common cell shapes found in prokaryotes?
оооо
Cocci (spherical)
Bacilli (rod-shaped)
Spirochetes (spiral-shaped)
Recticuli (rectangular)
Answer:
Recticuli(rectangular)
"Recticuli (rectangular)" is not among the most common cell shapes found in prokaryotes. Therefore, option (D) is correct.
Rectangular cells, represented by "Recticuli" in your options, are not among the most common cell shapes found in prokaryotes. Prokaryotes are primarily characterized by cocci (spherical), bacilli (rod-shaped), and spirochetes (spiral-shaped) forms. Cocci are typically round, bacilli are elongated rods, and spirochetes exhibit a spiral or helical structure.
These shapes facilitate various functions such as movement, attachment, and replication. Rectangular cells, while theoretically possible, are not commonly observed in natural prokaryotic populations. The lack of real-world prevalence could be attributed to the structural challenges and limited advantages of such a shape in prokaryotic environments. The prevailing shapes have likely evolved due to their practical benefits, underscoring the connection between form and function in these microorganisms. Therefore, option (D) is correct.
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Which of the following happens during interphase?
Answer:
Interphase is the portion of the cell cycle that is not accompanied by gross changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows (G1), replicates its DNA (S) and prepares for mitosis (G2). ... In interphase, the cell gets itself ready for mitosis or meiosis.
Explanation:
Answer:DNA replication takes place making two identical copies of the genome of the cell.
Explanation:
what are the Cell Division in the human liver cell
Answer:
mitotic division
Explanation:
Because scientists are unable to predict when and precisely where an earthquake will occur, the government has a duty to issue building codes to ensure that all structures can withstand earthquakes. Agree and disagree
Scientists are unable to predict when and where the earthquake will occur precisely, so the government has a duty to issue building codes to ensure that all the structures can withstand earthquakes. I agree with the given statement.
What is Earthquake?An earthquake is a natural disaster which happens when the two blocks of the earth suddenly slip past each other, this causes the tectonic plates to move. The surface where the blocks slip is called the fault or fault plane.
Earthquake damage the buildings and other infrastructure completely which can be fatal for the people living in that area. So, to save life of people government has the duty to issue the buildings code to ensure that all the structures can withstand earthquake.
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I’m stuck on this. I’ve asked my teacher 3 times and he just keeps telling me what assignment I’m on. I’m a week behind on work, and I only have a month before new semester. Please help! Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Onc
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from
folder. Upload each file separately.
Wether the apple has a taproot or a fibrous root
Answer:
taproot
Explanation:
Apple trees roots consist of a deep taproot and lateral fibrous roots. The taproot is analogous to the carrot, which is a taproot. Lateral fibrous roots can extent to more than twice the spread of the canopy of the apple tree and are influenced by soil, water availability and competition from the roots of other plants.
Answer:Tap roots.
Explanation:Because the roots are long.
How do you pronounce the full scientific name of DDT?
The genetically programmed death of cells is called:
Answer:
Apoptosis :)
Explanation:
What are potential solutions for the spike in human population
O educating women
O family planning (birth control)
O working women (contribute to the household income
O all the above
How does your body respond to an increase in the need for energy----why would you need more energy?
Your body circulates more blood and your heart beats faster.
You need more energy to do activities that take more effort.
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What else, besides energy, can a molecule of glucose be broken down to form?
Answer:
carbon dioxide, water, and ATP
Explanation:
Answer:
carbon dioxide, water, and ATP for energy.
Explanation:
cellular respirationa biochemical process in which cells break down glucose and oxygen to make
