Which of the following represents types of aquatic mammals from most aquatic to least aquatic?

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

In the water cycle , when does water undergo a chemical change