Answer:
C
Explanation:
It is known as lactation. The suckling action of an infant produces prolactin, which leads to milk production; more suckling leads to more prolactin, which in turn leads to more lactation. This is a positive feedback system as the product (milk) produces more suckling and more hormone. When the child is no longer breast feeding, the prolactin drops off and milk production goes down.
Answer:
Embedded in the lipid bilayer are large proteins, many of which transport ions and water-soluble molecules across the membrane. Some proteins in the plasma membrane form open pores, called membrane channels, which allow the free diffusion of ions into and out of the cell.
Answer:
<h2>Postsynaptic </h2>
Explanation:
Acetylcholine receptor is a kind of integral membrane protein that has a very important role in the binding of neurotransmitters such as acetylcholine and some other. Generally, these receptors are present on the postsynaptic cells to receive acetylcholine neurotransmitter to initiate the signal in the neurons cells and some other.
Acetylcholinesterase is a kind of important enzyme that has many important functions in the dissociation of acetylcholine and some other that function as neurotransmitters. This enzyme is also present in the postsynaptic cells.
Answer:
The sun
Explanation:
All living things (plants) can't grow without the sun. The sun is what starts plant growth. The plants absorb energy from the sun to grow and to make food. The green in plants are even from the sun! This is why most of the matter that makes up a tree comes from the sun!
Hope it helps!
Angiosperm have flowers.It is a flowering plant.
