Concept:Amphibians and some other animals depend on water for reproduction because their delicate eggs and larvae require a moist aquatic environment to survive.
Explanation:Water is essential for the survival of the eggs and embryos.
These animals lay eggs that lack a hard protective shell.
On land, such eggs would lose moisture and dry up quickly.
In water, the embryos receive proper moisture, oxygen, and nourishment.
The tadpoles or young ones also live and feed in water until they develop further.
Therefore, water bodies serve as a safe nursery for their offspring.
Land temperature is not necessarily unsuitable, but desiccation and lack of protection are the main dangers.
Thus, reproductive success is closely linked to the presence of water.
Answer:B. water nourishes their embryos and their young ones