What Is an Animal?

In addition to body structure and development, which of the following is used to classify animals?

• speed

• color

• DNA

• location

Because it has a backbone, how should a hippopotamus be described?

• vertebrate

• mollusk

• echinoderm

• invertebrate

The long neck of a giraffe helps it to find food in tall trees. What term best describes a giraffe's neck?

• appendage

• classification

• homeostasis

• adaptation

Which of the folllowing animals is an invertebrate?

• goldfish

• grasshopper

• turtle

• horse

A vertebrate is an animal _______ a backbone

• with

• without

____________ allow animals to perform their functions

• adaptions

• homeostasis

• reproduce

• classification

Animals perform ____________ to keep internal body conditions stable

• classification

• location

• homeostasis

• adaptation

One of the main functions of animals is to get food and ________

• reproductions

• DNA

• food

• oxygen

Animals that are more _______ related are grouped on the same branch of a classification tree

• closely

• distantly

• nearly

_______ is a chemical in cells that controls an organism's inherited characteristics.

• oxygen

• carbon dioxide

• color

• dna