Answer:
c
Explanation:
The lower limit should be small enough for the cell to move in the fluid efficiently. Therefore, option (D) is correct.
The major consideration in setting the lower limit of cell size is the need for the cell to move in fluid efficiently. As cells become smaller, their surface area-to-volume ratio increases, allowing for more effective exchange of nutrients, gases, and waste products across their membrane.
This is particularly important for cells living in fluid environments where diffusion plays a crucial role in these exchanges. Small cells have an advantage in absorbing and expelling substances due to their larger surface area relative to their volume. Therefore, the efficiency of nutrient uptake and waste removal becomes more effective with smaller cell sizes, making efficient movement in fluid environments a significant factor in determining the lower limit of cell size. Thus, option (D) is correct.
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Which statements best describe the role of glucagon and insulin in this scenario
Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces
Answer:
d.
Explanation:
...
at what point in meiosis do sister chromatids separate?
Answer:
anaphase II
Explanation:
This is when the string like things pull the sister chromatids and move them towards opposite poles. And then in the next step they began to separate as two different cells
at what point in meiosis do sister chromatids separate?
Answer :Anaphase
Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.
Directions: Together with your parents and siblings, create a simple irrigation system in your house that will help in growing your plants. Watch the video on the link below and use the knowledge that you gained from the lesson. After doing the activity answer the question: "How did you apply the knowledge you gain from the video and from the lesson in creating your own irrigation system?
Knowledge and understanding
20
Students showed excellent knowledge about the topic
10
Students showed limited knowledge about the topic
5
Students have very limited knowledge about the topic
The video with the necessary information to answer the question is missing. So, an irrigation system definition and example will be given.
An irrigation system is a structure made of tubes, hoses, and sprinkles; Its function is to water plants or crops with the correct amount of water and in an evenly way.
A simple irrigation system that will help grow plants at home is a plastic bottle with small holes connected to a hose with a tube that can lead the water from the hose to the bottle without losses. The bottle with its holes works as a sprinkler.
In conclusion, irrigation systems are in lawns, fields, or gardens, and they water the plants evenly so that they can grow. There are many types, but we can build a simple one with a bottle.
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PLEASE HELP ME IM TIMED!
Answer:
C
Explanation:
proteins have a chemical composition of hydrogen carbon oxygen nitrogen and sometimes sulfur
What is an example of a microorganism acting in a harmful way? Question 6 options: Bacteria infecting a cut. Bacteria aiding in digestion. Bacteria used to create yogurt. Fungi decomposing waste in a septic tank.
Answer:
I would say A but im not sure
Explanation:
Answer:
bacteria aiding in digestion
approximately how many non-bacterial species are on earth?
Answer:
8.7 million
Explanation:
There are approximately 8.7m (give or take 1.3m) eukaryotic species on earth. Bacteria (and also archaea) are prokaryotic, not eukaryotic, so this number excludes them.
Under very high pressure, the volume of a given object will decrease. What effect has the pressure inside Earth likely had on the density of materials in Earth’s core?
The effects the pressure inside Earth likely had on the density of materials in Earth’s core
What is Earth's pressure?It is made up of rock that is molten with slow-moving currents under the effect of increasing pressure and temperatures between 1,600 and 4,000 °F. Volcanic eruptions and earthquakes are caused by movement in the mantle layer.
Similar to how the temperature rises from the surface of the planet toward its center, so do the pressure. It is because of the heavy materials above, such as rocks.
The air density inside the International Space Station is kept at a level that is comparable to that of the surface of the planet. Consequently, the air pressure in the space station is equivalent to.
Therefore, the tremendous pressure inside Earth has the effect of reducing the volume of the materials, increasing their density.
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Answer:The high pressure decreased the volume of the materials, which caused their density to increase.
Explanation:
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Height in humans is a polygenic trait with a distribution similar to the graph shown Which is true concerning the distribution of
height in human populations? (1 point)
O Most individuals will be below average height
O Most individuals will be at the extremes of height
O Most individuals will be above average height
O Most individuals will be of average height
Answer:
The answer is D
i hope this helps buddy
Explanation:
RAPPY202
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what is the effect of telomere caps on cancer cells?
The telomere caps help to maintain genome integrity. In consequence, these repetitive sequences are fundamental to avoid the generation of cancer cells.
Cancer cells are a type of cells that proliferates in an uncontrolled manner, which is generally associated with mutations in the genome capable of altering normal gene expression patterns.
Telomere caps are repeated nucleotide sequences found at the end of chromosomes, which help to maintain genome integrity.
The elimination of these repetitive sequences (telomere caps) due to successive cell divisions triggers chromosomal (genome) instability and thus contributes to the emergence of genomic rearrangements that may lead to carcinogenesis.
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What would be most likely to happen to a plant that had working chloroplasts in its cells but had taken in a poison that kept mitochondria from working? (1 point)1.It would use its chloroplasts to do the work the mitochondria should have done.2.It would use the energy from the Sun to replace the energy provided by mitochondria.3.It would have a difficult time gathering enough solar energy during photosynthesis.4.It would not be affected since plants do not require mitochondria.
Answer:
It would use its chloroplasts to do the work the mitochondria should have done
Label each of the components in the equation below. What type of reaction is shown in the equation?
Answer:
It's an esterification reaction
Glycerol + Fatty acid ---> Triacylglycerol or triglyceride
+3 water molecules
The chemical equations shown depict esterification and dehydration reactions.
What is a chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Which of the following adaptations found in animals in deciduous forests protects against predators? a. Fat storage b. Migration c. Hibernation d. Camouflage.
Answer:
D
Explanation:
Answer:
d i just took the test
Explanation:
Two noncellular agents, smaller than viruses, are infectious RNA strands called ___ and infectious proteins called ___. prions; viroids prions; phages viroids; phages viriods; prions prions; capsomeres
Answer:
A. prions; viroids
Explanation:
Name the 2 different types of endoplasmic reticulum and explain the function of each type endoplasmic reticulum to the cell . (ie - what does each one 'produce', or make for the cell)
Answer:
The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.
Explanation:
Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.
Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones.
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Which of these statements could BEST describe the differences between the electron transport chain in cellular respiration and photosynthesis?
A
The electron transport chain in photosynthesis needs a source of energy to start with, and the one in cellular respiration does not.
В
The electron transport chain in cellular respiration releases ATP, and the one in photosynthesis does not.
C
The electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not.
D
The electron transport chain in cellular respiration uses NADH, and the one in photosynthesis does not.
Answer:
c
Explanation:
etc uses oxygen
photosynthesis uses carbon dioxide
The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
What is Photosynthesis?Photosynthesis is a biochemical reaction that combines chemicals with biological species to produce energy. Atoms of hydrogen bond with carbon to form glucose.
Carbon dioxide and hydrogen are the reactants that are used from the environment by the plants to make energy. Glucose and oxygen are the products. Splitting water into oxygen gas, hydrogen ions and electrons produces the energy for subsequent electron and proton transport and provides the energy to produce the sugars the plant needs.
The hydrogen atoms from the environment are absorbed by the plants and are combined with the carbon dioxide to yield glucose or sugar molecules for energy.
Therefore, The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
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Use the same link to answer the following
question
Why Is Biodiversity Important? Who Cares?
Name three biological services provided by
biodiversity
Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.
What is Biodiversity?Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.
Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.
Therefore, biodiversity is an important part of the biosphere.
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Answer:
Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.
What is Biodiversity?
Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.
Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.
Explanation:
someone help me asap
Answer:
its c
Explanation:
because it has a definition on it
What is the name of the play that Hamlet presents to King Claudius?
Answer:
The Mousetrap
Explanation:
In act 3, scene 2 of William Shakespeare's Hamlet, Claudius asks Hamlet for the play's title, to which Hamlet replies, The Mousetrap. He says that the play presents the true story of a murder carried out in Vienna.
Are large erganle melecules found in living things like proteins,
carbohydrates, nuclele acids and lipids
Answer:
YES THEY ARE FOUND
Explanation:
what specific type of tissue makes up the intervertebral discs
Answer:Fibrocartilage
Explanation:
Please Help Putting These Answers Where They Go !
Answer:
Can you add a list?
Explanation:
Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
B. It is better for the cell if most molecules are prevented from
entering
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
Oh
Answer:
(B) It is better for the cell if most molecules are prevented from entering.
I hope this helped at all.
The ______ contain the neurotransmitter, located in the _________. Neurotransmitter will be released only if the neuron sends a(an) ________.
Answer:
Is contained in the synaptic vesicles.
Located in the axon terminal of the presynaptic neuron.
Explanation:
Neurotransmitters are stored in the synaptic vesicles, clusted closed to the cell membrane at the axon terminal of the presynaptic neuron.Neurontransmitters are released into and diffuse across the synaptic cleft, where they bind to specific receptors on the membrane of the postsynaptic neuron.
"Hope this helps".
NEED THIS ASAP Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
I, II, and III.
Explanation:
Immune response may be defined as the type of response generated by the body against the pathogens. The immune response is important to kill the pathogens.
Fever is a type of immune response generated to kill the pathogen by increasing the body temperature. The number of white blood cells of the body increases to fight against the pathogen. The inflammatory response may also generated to kill the pathogen.
Thus, the correct answer is option (E).
One gene in the human genome may be expressed at a much higher level than another. Can differences in types of cis elements present account for this
Answer:
No, CREs usually don't account for differences in gene expression levels.
Explanation:
Cis-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene transcription. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate gene expression levels.
Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.
Volcanic eruptions have immediate effects such as
AND long term effects such as
O global warming, hot lava
O global warming, lowering temperatures
O lowering temperatures, global warming
O hot lava, causing more hurricanes
Explanation:
Lowering temperatures and global warming
homeostasis in unicellular organisms depends on the proper functioning of....?
Answer:
organelles
Explanation:
the tendency of certain alleles to be inherited together is called
Answer: Genetic Linkage
Explanation:
It's during the meiosis stage of sexual reproduction.
Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
The answer is I ,II and III