Which biome has animals with antifreeze and no plants growing here?

Bonus question – Which animal constantly poops and leaves a long trail of poops?

These animals have exoskeleton made of chitin.

Fossil evidence and genetic analyses indicate that the first animal evolved from colonies of __________________ about 600 million years ago.

Have a lateral line to detect vibrations.

These animals have a closed circulatory system and nephridia.

Members include leeches.

Bonus question – Which shark is the largest shark?

Members include lancelets.

A corkscrew-shaped bacterium would be classified as a