Quiz 3

Question 1

Give the three mammalian groups and an example of each

Answer 1

Monotremes - carry young in eggs (platypus)

Marsupials - carry young in pouch (kangaroo)

Eutherians - carry young in placenta (humans)

Question 2

Sharks are a member of the group…

Answer 2

Chondrichthyes

Question 3

Which are three adaptations that helped amniotes move onto land?

Answer 3

amniotic egg
advanced kidneys
Keratin scales

Question 4

What helped birds fly?

Answer 4

keel
lightweight bones
Airfoil wings

Question 5

Harpoon-like structures in Cnidarians?

Answer 5

Nematocysts

Question 6

What group is known to use hydraulics to help ventilate?

Answer 6

Echinodermata

Question 7

what organism is the intermediate animal in the evolution between invertebrates to vertebrates?

Answer 7

Amphioxus (lancelet)

Question 8

First group to develop celphalization?

Answer 8

platyhelminthes

Question 9

Chitinous skeleton?

Answer 9

Arthropoda (crustacea, uniramia, chelicerata)

Question 10

Which group was the first aminotes?

Answer 10

reptiles

Question 11

What are the characteristics of all chordates some time in their life cycle?

Answer 11

postanal tail
gills
Dorsal hollow nerve chord
Notochord