Life Science

Chapter 15: Birds and Mammals

Birds and Mammals

1.
Which type of feather helps birds maintain a constant body temperature?
A)contour
B)down
C)barbed
D)oil
2.
Which bird lays the biggest egg?
A)the owl
B)the bald eagle
C)the ostrich
D)the hummingbird
3.
Which of these is a flight adaptation for birds?
A)poor eyesight
B)sharp claws
C)hollow bones
D)small beaks
4.
Which of these is part of a mammal's nervous system?
A)the brain
B)the mammary glands
C)the oil glands
D)the crop
5.
The organ that develops from the embryo's tissues and the tissues inside the uterus is __________.
A)the pouch
B)the gizzard
C)the placenta
D)the nipple
6.
Which part of its body are a bird's wings attached to?
A)its leg bones
B)its crop
C)its chest muscles
D)its spine
7.
What role in nature do hummingbirds perform?
A)They disperse fruit seeds.
B)They control insect populations.
C)They control rodent populations.
D)They pollinate flowers.
8.
Which of these belongs in the order Carnivora?
A)foxes
B)zebras
C)seals
D)rats
9.
Which of these is true?
A)A bird needs more than a day to digest its food.
B)A bird's offspring develop in its uterus.
C)A bird has no circulatory or digestive system.
D)A bird's heart is large in comparison to its body size.
10.
Which of these produces milk?
A)the lymph glands
B)the oil glands
C)the mammary glands
D)the scent glands
11.
__________ help mammals sense their environment.
A)Molars
B)Herbivores
C)Whiskers
D)Glands
12.
Which of these is a marsupial?
A)an orangutan
B)an aardvark
C)a koala
D)a duck-billed platypus
13.
Which of these describes how mammals reproduce?
A)through budding
B)through asexual reproduction
C)through sexual reproduction
D)through regeneration
14.
Which body characteristic of modern birds did Archaeopteryx have?
A)teeth
B)a long tail
C)solid bones
D)feathers
15.
Where do placental embryos develop?
A)in eggs with leathery shells
B)in the mammary glands
C)in the sensory hairs
D)in the uterus
16.
Which of these helps a bird fly?
A)lift
B)gizzard
C)barbs
D)guano
17.
What do molars do to a mammal's food?
A)bite it
B)tear it
C)digest it
D)grind it
18.
Bird parents __________ their eggs until they hatch.
A)incubate
B)clutch
C)contour
D)preen
19.
Which of these animals has a skeleton adapted for running?
A)beavers
B)moles
C)zebras
D)porpoises
20.
Which mammal teeth are used to bite and cut?
A)molars
B)canine teeth
C)incisors
D)grinders
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