It is 200 million years because it has been around for a long time.
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.
A. it will eventually reach its carrying capacity
You know that there is a difference between plant cells and animals cells. The plant cells have a cytoplasm while the animal cells do not. Therefore the answer must be C.
The correct answer to this open question is the following.
Although you forgot to attach the options for this question we can say the following.
A cruise ship makes its way from one island to another. the ship is in motion compared with which reference point?
The correct answer is "a lighthouse on a nearby island."
In this case, that is the function of the lighthouse. To be the point of reference or the guiding element that the captain of the ship is going to use to keep the ship's trajectory correct.
Although there are uncontrollable external elements such as heavy storms, fog, or bad weather, the captain of the ship is going to be guided by the lighthouse.