Which of the following describes all animals? a. all animals have back bones. 2. all animals are multicultural. 3. all animals control their own body temperature. 4. all animals are vertrbrates.

A thing that describes all animals is that all animals are eukaryotic and multcellular organisms. BTW the answer is B/2.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)