1 Which of the following is associated with bilateral symmetry?

A) a definite ‘head end'

B) stationary life style

C) lack of organs

D) lack of true tissues

2 A distinguishing feature of vertebrates is the presence of ______

A) legs

B) a backbone

C) a gastrovascular cavity

D) a post anal tail

3 Which vertebrate is considered the first tetrapod to colonize land?

A) lungfishes

B) amphibians

C) reptiles

D) mammals

4 Which of the following animals has an exoskeleton?

A) octopus

B) starfish

C) earthworm

D) grasshopper

5 The evolution of humans included which of the following?

A) development of good depth perception

B) providing parental care

C) increased brain size

D) development of nails to replace claws

6 Humans are classified into the ____________ phylum.

A) chordate

B) arthropod

C) primate

D) echinoderm