A. natural enemies destroy their eggs on land
B. water nourishes their embryos and their young ones
C. they are close to their ancestors and imitate them
D. the temperature on land is not suitable for the development of their embryos

Correct Answer: Option D

D. the temperature on land is not suitable for the development of their embryos

SEE ALSO  The factor that least affects food shortages in sub-saharan Africa is?

Copyright warnings! Do not copy.