Answer:
The correct answer is - mutualism.
Explanation:
Like it is given here, The coral gives a protected environment for algae and other compounds algae required for photosynthesis. Photosynthesis performed by the algae provides a byproduct of microscopic algae.
These algae produce oxygen and help the coral to remove wastes and algae is important to the survival of the coral animals, which use the energy to extract calcium from the seawater and build their calcareous skeletons.
Answer:
C
Explanation:
Becuase fom a vaccine you are recieving antibodies by another animal or human donor.
D is unlinkely since it describes how the mother is nursing the baby, so nothing directly mentioning of the baby recieving any antibodies. The other options also talk about how the body creates its own antibodies, which isn't passive immunity.
<span>B. Animals must switch between ectotherm and endotherm methods.
</span>The hypothalamus in the brain, is responsible for monitoring the body temperature. The hypothalamus causes the body to react differently when the body is too hot or if the temperature gets too cold. <span>The normal body temperature is 37'. The hypothalamus triggers the receptors such as sweat glands and body hair muscles in the body.The sweat glands open up when the body is too hot and secrets sweat until the temperature is regulated again. Similarly in cold conditions the body hair muscles pull the hair upright because standing hair absorbs more heat until the falling body temperature returns to normal.</span>
A is mostly likely your answer.
Hormone production is an example of positive feedback