QUESTION 1

Which of the following is a member of the class Oligochaeta?

clam worms

earthworms

leeches

all of the above
1 points

QUESTION 2

What is an arthropod's exoskeleton made of?

cellulose

chitin

bone

all of the above
1 points

QUESTION 3

Which arthropod class do centipedes belong to?

Arachnida

Merostomata

Malacostraca

Chilopoda
1 points

QUESTION 4

Which of the following is NOT an echinoderm?

sea urchins

starfish

jellyfish

none of the above
1 points

QUESTION 5

What do all vertebrates have?

segmented bodies

gills

exoskeletons

endoskeletons
1 points

QUESTION 6

Which part of the water do lancelets inhabit?

surface of freshwater ponds

bottom of lakes

depths of the ocean

shallow sandy coastal areas
1 points

QUESTION 7

Which kind of fish might resemble the earliest vertebrates?

lamprey

sharks

bony fish

none of the above
1 points

QUESTION 8

The _____ fish are the most primitive living fish group

bony

cartilaginous

jawless

none of the above
1 points

QUESTION 9

Devonian lobe-finned fish were the ancestors of

echinoderms.

sharks.

amphibians.

none of the above
1 points

QUESTION 10

Most reptiles have a nearly _____chambered heart.

four-

three-

two-

none of the above
1 points

Click Save and Submit to save and submit. Click Save All Answers to save all answers.