chapter 10 test Life Science

What phylum are vertebrates classified under?

• Chordata

• Animalia

• Stuffleupagus

• Protista

The only vertebrates that are endothermic are

• amphibians and reptiles
• birds and mammals
• insects and arachnids
• echinoderms and mollusks

Body temperature changes with the environment.

• endotherm
• ectotherm

Has to eat more often to maintain constant body temperature.

• endotherm
• ectotherm

In most mammals the embryo develops

• inside the mother's body

• inside an egg

• on land

A young frog can leave water and live on land when its

• lungs develop

• gills appear

• legs get stronger

During its larval stage, a frog is called

• an embryo

• a tadpole

• a placenta

All of the following are features of chordates except

• left and right side

• a highly developed nervous system

• an open circulatory system

A structure in some mammals that connects the mother with her developing offspring is

• a placenta

• an embryo

• a pouch

An example of an amphibian with a tail is the

• Toad

• Snake

• Salamander