Answer:
protein-coupled receptors.
Answer: a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
Explanation:
The condition is artesian
Euglena are like all other cells because they<span> grow and reproduce. They obtain nutrients by taking in other microorganisms an make their own food by using the energy from sunlight.</span>
Most coelomates possess a "A. Circulatory system" because the main feature of these animals is that they posses a digestive tract, which requires a certain amount of circulation.
