In/vertebrates Vocabulary

14 cards·by rrathje

vertebratesinvertebratesscience

Any animal that at some time in its life has a large nerve cord running down its back is known as a(n)

chordate

All vertebrates have an internal skeleton, or ____, to support their bodies.

endoskeleton

The tip of your nose and the flaps of your ears are made of

cartilage

Four-footed vertebrates

tetrapods

All reptiles are _____, which means their blood can be cold or warm, depending on the surroundings.

cold-blooded

Mammals and birds keep their body temperature constantly warm, which is why that are called ____ animals.

warm-blooded

Mammal milk is made in organs called __.

mammary glands

The animal kingdom is divided into two groups:

vertebrates and invertebrates

___ have backbones.

vertebrates

___ do not have backbones.

invertebrates

Most cnidarians use arm-like structures called __ to capture and sting the food they eat.

tentacles

Many __ live inside animals and plants.

roundworms

Mollusks such as clams and oysters are known as __ because their shells have two pieces.

bivalves

Arthropods have jointed limbs and an __, or outer skeleton.

exoskeleton