Answer:
a.There are three signaling pathway
1- Reception in which molecule binds to receptor
2- Signal transduction in which activation of intracellular pathway and enzyme occur.
3- Cellular response in which specific response of cell occur according to receptor and ligand.
b. Three types of receptors are
1- autocrine
2- paracrine
3- endocrine.
Explanation:
autocrine receptors are signaling pathway in which cell releases its molecule and bind to its own cell receptor example cancer cells while paracrine in which ligand binds to other nearby cell receptor and it is used during development and in endocrine cell target distinct cell and travel through blood stream like hormones functioning.
The size of the proboscis helps the moth to consume the food (nectar) easily from Darwin's orchid.
<h3>What do you mean by Adaptation?</h3>
Adaptation may be defined as the process of modifying one's characteristics to better suit a situation and survive more efficiently.
The size of the tube that produces nectar is just 27.9cm long, while the length of the proboscis of a moth is 30.5cm. It easily consumes the nectar and gets energy for survival as well as reproduction.
Therefore, the size of the proboscis helps the moth to consume the food (nectar) easily from Darwin's orchid.
To learn more about Adaptation, refer to the link:
brainly.com/question/1213023
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Based on the information provided above, it is most likely
that the aunt is being treated for schizophrenia as the drug needed in helping
patients with schizophrenia contains of having the capability of affecting the
levels of dopamine in the brain. Schizophrenia is considered to be a mental
disorder in which an individual has this would likely have a social behavior
that is abnormal and that he or she may fail in understanding what reality
really is.
Answer:
Leydig cells produce testosterone
