Why do amphibians live near water?
a. to prevent drying out and as a food source
b. to prevent drying out and to lay their eggs
c. to prevent dring out and to have water
d. to prevent drying out and to be close to flora for protection

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.