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Ulleksa [173]
3 years ago
15

Overtime, why does natural selection continue to work?

Biology
1 answer:
dedylja [7]3 years ago
7 0

Environments are always changing so organisms need to adapt to survive. The organisms that survive are the ones that are fit to live in that environment, which is where survival of the fittest comes into play.

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What hormone released by the highlighted structures inhibits the secretion of FSH only?
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Inhibin inhibits the secretion of FSH only.

<h3>What is the role of inhibin?</h3>
  • Inhibin is a protein mainly produced by the gonads.
  • In men it is produced by the Sertoli cells and it is produced by the granulose cells in women.
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After a signal binds to a signal receptor, the next step is transduction. Why is the signal transduction step necessary ls7c wee
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Explanation:

Living organisms have developed a wide variety of complex processes to transmit signals from the outside to the inside to elicit an adequate cellular response. Defects in these molecular pathways can lead to very different disorders, such as diabetes, cancer, and psychotic illnesses. Signal transduction is the process by which a cell converts a certain signal or external stimulus into another signal or specific response, that is, it is the mechanism by which a cell responds to the stimuli it receives from the environment through diffusion. of those signals to its internal compartments. First, a signaling molecule (also called a ligand) needs to activate a specific receptor on the cell's membrane or cytoplasm. Ligand-receptor binding is very specific; they are recognized as a key and a lock. Second messengers are molecules that allow the received signal to be amplified at the intracellular level. The binding of a ligand to the receptor can generate hundreds of second messenger molecules that, in turn, can modify thousands of effector molecules and give rise to different responses. Cells recognize, integrate, and respond to multiple signals from their environment due to signal transduction, providing cells with a normal cell function.

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Please link the graph into this question
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