Answer: Well really the digestive, respiratory and circulatory systems all work together to make cellular respiration possible so i guess you could choose a or b
Explanation:
Answer: True,
Small amounts of hormones have large effects on an organism because the signals are amplified between glands and tissues due to the second messenger systems.
explanation:
Second messemgers are the intracellular molecules which are activated by the extracellular molecules. Second messengers intracellulary triggers physiological changes such as proliferation differentiation migration etc.
When hormones are released they bind to specific receptors such as G-coupled recptors,tyrosine recpetor which when activated further activates second messengers such as cAMP and STAT respectively.
These second messengers amplify the hormone secretion and production by phosphorylation and increasing transcription.
Hence this is true that second messnegers amplify the hormones and their physiological results.
The correct
answer between all the choices given is the first choice or letter A, <span>joins the two sister chromatids</span>. I am
hoping that this answer has satisfied your query and it will be able to help
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An available niche after extinction can lead to speciation because it allows the emergence of genetic variation in other competing species.
<h3>What is speciation?</h3>
Speciation is a slow process associated with the emergence of reproductive isolation barriers in a population.
These barriers lead to the absence of gene flow and eventually to the emergence of new species.
In conclusion, an available niche can lead to speciation in other competing species.
Learn more about speciation here:
brainly.com/question/2113835
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Answer:
it is D
Because the DNA have all our genetical storage
