Answer:
Antidiuretic hormone
Explanation:
Antidiuretic hormone that is synthesized and produced in the brain by the hypothalamus, is secreted from the pituitary gland, where it is stored. This hormone is released into the blood stream in response to changes in the water balance in the blood. This hormone helps the kidneys to control and regulate the amount of water in the blood
Answer:
A
Explanation:
From what I know this could be wrong, but in the four stages of natural selection, the first step is overproduction, the second step is adaptation, and the third step is competition or survival of the fittest. This means that only the organisms with the best adaptations for their surroundings will survive. COULD BE WRONG SORRY IF IT IS
The answer is A because they are parts of algae
This is known as parasitism.
In biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.