Chapter 15: Section 2

Match it! Select the correct answer from the pull down...Good luck!

Squids and octopuses are classified as ___.

In ___ circulatory systems, blood is pumped through vessels that empty into sinuses.

The shell of a snail is secreted by the ___.

Annelid worms have ___.

An octopus has a ___ circulatory system where the heart circulates blood through blood vessels that form a loop.

The phylum Mollusca includes ___.

Earthworms have ___ on the outside of their body to help them move.

Slugs and snails are classified as ___.