Organisms that have backbones to protect and support internal structures.

A type of reptile that uses squeezing to trap and kill its prey is known as this kind of reptile.

The study of reptiles, specifically, is called ___.

This term means double-life and is appropriate for animals that can live both on land and water.

These structures are responsible for carrying blood away from the heart toward the organs.

These are found within certain organisms and are responsible for gas exchange.

These structures are responsible for carrying blood away from the organs toward the heart.

(select ALL that apply) When an ectotherm becomes too hot it may do this/these

(select ALL that apply) When an ectotherm becomes too cold it may do this/these

What is the MAIN difference between an endotherm and an ectotherm?

(select ALL that apply) When an endotherm becomes too hot it may do this/these

(select ALL that apply) When an endotherm becomes too cold it may do this/these

finger-shaped extension, richly supplied with capillaries, to capture O2 and give off CO2

the purpose of this system is to transport food to cells away from the digestive tract

the primary function of this system is to capture O2 and release CO2

air chambers inside an animal's body where blood can obtain O2 and give off CO2

made of the brain and the spinal cord

organ that filters waste from the blood (according to our notes)

tubular organ in which excess water is absorbed and reused

saclike portion of the digestive tract that performs mechanical and chemical digestion

the primary function of this system is to remove waste out of the body