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Book B, Ch4 Practice
Test Description: Birds, mammals, evolution
Instructions: Answer all questions to get your test result.
1) Which of the following is a reason that Australian marsupials are endangered or extinct?
A
A massive earthquake killed them and destroyed their habitats and food sources
B
A small meteor strike there and the aftermath caused many species to die from loss of habitat, food, and climate change
C
Europeans changed the environment dramatically when they arrived there.
D
An invasive species of sharks that can walk on land have been rapidly expanding and preying on the animals there
2) Which environmental condition is believed to have driven the adaptations in penguins that prevent them from flying?
A
Most of their food is in the water
B
Predators in the air forced them to take to the water
C
It is colder up high in the air which forced them to spend more time on the ground
D
A lack of predators on land made it unecessary for them to fly
3) Why can penguins no longer fly?
A
Through natural selection the environment drove adaptations that were better suited for diving than flying
B
They spent so much time in the water because that was where their food was that they forgot how to fly
C
They are too lazy
D
They saw other penguins getting food in the water so they decided they would get their food there too and so adapted to be ab
4) Which of the following is not an adaptation for bird flight?
A
air sacs to make them lighter
B
rapidly beating heart
C
down feathers to make them streamlined
D
wings
5) Which of the following characteristics are shared by all mammals?
A
long legs, mammary glands, good vision
B
poor hearing, constant body temperature, live births
C
good vision, diaphragms, long necks
D
mammary glands, diaphragms, constant body temperature
6) A bird’s streamlined body surface is created by
A
the crop
B
down feathers
C
contour feathers
D
the keel
7) What characteristic of mammals helped them become better consumers?
A
having different kinds of teeth
B
having a jaw that can open wider than other animals
C
having opposable thumbs
D
being lower the the ground
8) Why do marsupials need a pouch for their young after birth?
A
to keep them from running away before they are ready to take care of themselves
B
to carry them until they learn to hop
C
because the mothers need to breathe for their young
D
to protect and feed them while they continue to develop
9) Which of the following is NOT a marsupial?
A
numbat
B
panda
C
Tasmanian devil
D
wallaby
10) For speciation to happen groups of the same species must first
A
decide that they are not strong enough for their current environment
B
adapt to different environments
C
separate into different environments with different conditions
D
compete with each other for dominance
11) A characteristic that improves an organism’s ability to survive is a(n)
A
adaptation
B
inherited variation
C
breeding
D
reproduction
12) What is the process by which organisms that are better adapted to their environment survive and reproduce more successfully than less well adapted organisms do?
A
species separation
B
genetic resistance
C
genetic change
D
natural selection
13) The process by which populations slowly change over time is called
A
selective breeding
B
evolution
C
speciation
D
adaptation
14) Marsupials are born _________________ after fertilization
A
Days or weeks
B
Several months
C
Nine months
D
Hours
15) Scientists compare organisms’ DNA to support the theory that all species share a common
A
separation
B
environment
C
population
D
ancestor
16) A spider may produce hundreds of eggs, only a few of which may survive. This is an example of
A
overproduction
B
speciation
C
genetic change
D
division
17) The trace remains of an organism that lived long ago, most commonly preserved in sedimentary rock, are a
A
sediment
B
mineral
C
fossil
D
layer
18) Which of the following is NOT an example of natural selection?
A
dog owners breeding their pets to produce friendlier offspring
B
male birds developing extremely colorful displays of feathers
C
insects developing pesticide resistance
D
elephants passing the tuskless trait to their offspring
19) Which of the following features did whales possibly inherit from a four-legged ancestor?
A
gills
B
hind limbs
C
hip bones
D
legs
20) The fact that an organism’s offspring are not identical is known as
A
adaptation
B
genetics
C
reproduction
D
inherited variation
*select an answer for all questions
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