Answer:
They sleep on just one side of their brain at a time
Explanation:
Dolphins are different from fishes that can breathe underwater.
It is necessary for them to get to the surface of the water at intervals to breathe air.
While sleeping, dolphins allows one hemisphere of their brains fall asleep while the other half is fully conscious. This means that If the left brain is sleeping, the right eye stays open and if the right brain is sleeping, the left eye stays open.
This happens so they always know when it's time to surface and breathe and when to escape when there is trouble.
I believe <span>peptidoglycans (Murein) contain both d and I-amino acids.</span>
Diseases that were common in swampy and marshy area, including Dengue and Malaria were especially common. The environment of the area tends to attract a lot of mosquitoes which are known to be vectors of such dangerous diseases.
The answer would be osmosis
I learned this it the nuclear without that they would not have nutrients
