Biology - Chapter 6 Vocabulary

Front

The circulatory system carries chemical signals known as ______.

Back

hormones

Front

A tubelike digestive space with an opening at each end is called a _______.

Back

digestive tract

Front

A chamber that pumps blood out of a vertebrate heart is called a _____.

Back

ventricle

Front

Flatworms remove excess water through a system of tubes connected to _______.

Back

flame cells

Front

Blood stays inside vessels at all times in a ___.

Back

closed circulatory system

Front

An animal that eats plants is called a ____.

Back

herbivore

Front

Cdnidarians have a simple nervous system known as a ____.

Back

nerve net

Front

A ___ is a digestive space with a single opening.

Back

gastrovascular cavity

Front

In most animals, a ___ grinds food into a watery paste.

Back

gizzard

Front

A sponge gets food by ___.

Back

filter feeding