Lab 6

Question 1

How many legs and body segments do arachnids have?

Answer 1

8 legs
2 body segments

Question 2

How many legs and body segments do insects have?

Answer 2

6 legs
3 body segments

Question 3

Invertebrates account for what percentage of all animal species?

Answer 3

95%

Question 4

What is the most abundant animal group?

Answer 4

Nematoda (round worms)

Question 5

What is the most diverse animal group?

Answer 5

Arthropods (insects, arachnids, and crustaceans)

Question 6

What is the most primitive animal group?

Answer 6

Porifera (sponges)

Question 7

What three traits do all bony fish have and what are their functions?

Answer 7

lateral line system (detects vibration in water)
swim bladder (maintains buoyancy)
operculum (protects gills)

Question 8

What is the derived trait of animals?

Answer 8

Capability of movement

Question 9

example of mollusk

Answer 9

gastropod: snail
bivalve: clam

Question 10

example of mammal

Answer 10

bear

Question 11

example of cnidaria (jellyfish group)

Answer 11

sea anemone

Question 12

example of amphibians

Answer 12

frog

Question 13

example of annelids

Answer 13

earthworm

Question 14

example of cephalopod

Answer 14

squid

Question 15

example of nematoda (roundworm)

Answer 15

heartworm

Question 16

example of platyhelminthes (flatworm)

Answer 16

tapeworm

Question 17

example of reptile

Answer 17

crocodile

Question 18

example of echinoderm

Answer 18

starfish

Question 19

example of arthopod

Answer 19

insect: butterfly
arachnid: spider
crustacean: shrimp

Question 20

example of porifera

Answer 20

sponges