biostp.2

Chapter 28
Name Date Class
1
During embryonic development, what replaces
the notochord in vertebrates
A the dorsal nerve cord
B cartilage
C the vertebral column
D the neural crest
Use the diagram below to answer question 2 and 3.
Caudal fin
Dorsal fins
5
What feature of amphibians probably prevents
them from inhabiting colder climates
A They are endothermic.
B They breathe through their skin.
C They have a three-chambered heart.
D They are ectothermic.
6
Why couldn’t amphibians use gills to breathe
once they started walking on land
A There isn’t enough oxygen in the air.
B Air temperature fluctuates too much.
C Gills need to be moist for gas exchange.
D There is too much oxygen in the air.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Anal fin
Pelvic fins
2
On what part of the body is the caudal fin
located
A anterior
B posterior
C dorsal
D ventral
Pectoral fin
3
What feature of many fins reduces the chance
of fishes rolling to the side
A dorso-ventral arrangements
B posterior location
C paired fins
D balanced distribution over the body
4
You are fishing, and notice that every time you
drop your line into the water, the fish move
down. What is this adaptation
A depth perception system
B swim bladders
C motion sensor
D lateral line system
7
What enables a fish to remove up to 85 percent
of the dissolved oxygen from water
A The fish mouth stays open.
B Blood in the gills flows opposite to the flow
of water over the gills.
C Blood flows in the same direction as water
flows over the gills.
D The fish has lungs.
8
The development of what feature enabled fish
to begin to feed on larger, more active prey
A slime glands in the skin
B paired fins
C jaws
D scales
STANDARDIZED TEST PRACTICE CHAPTER 28 55