Animal Characteristics study guide

 

What four general characteristics do vertebrates (chordates) have that separate them from invertebrates, in terms of classification.

notochord, nerve cord, gill slits, postanal tail

What four general characteristics do animals have that separate them from other kingdoms, in terms of classification.

multicellular, movement, sexual reproduction and heterotrophic

What two kinds of tissue are only found in animals?

muscle and nerve

A

Anterior

B

Dorsal

C

Posterior

D

Ventral

Asymmetry means the organism has

no shape

Radial symmetry means the organism has

a round shape

Bi-lateral symmetry means the organism has

a left and right that mirrors each other

What are two functions of a body cavity?

support and movement

What is the difference between an open circulatory system and a closed circulatory system?

a closed circulatory system uses blood vessels, an open does not

From what germ layer do the skeleton, muscles, and blood of an animal arise?

mesoderm

 

From what germ layer does the skin of an animal arise?

ectoderm

 

From what germ layer does the digestive tract arise from?

endoderm