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Natural Selection
Test Description: How animals adapt to their environments
Instructions: Answer all questions to get your test result.
1) _____ is when an organism blends into its environment.
A
chemical defense
B
camouflage
C
Mimicry
D
embryology
2) ____ is the breeding of plants and animals to produce desirable traits.
A
Artificial selection
B
Biodiversity
C
Relative dating
D
Natural selection
3) Scientists use _____ to estimate the age of fossils from sedimentary rocks.
A
relative dating
B
natural selection
C
metamorphic rocks
D
hypotheses
4) The study of the development of the earliest stage of organisms is ____.
A
Homologous structures
B
Embryology
C
Infantology
D
Relative dating
5) Body parts that are reduced in size with no apparent function are called ____.
A
genes
B
Vestigial structures
C
Embryos
D
Chemical defenses
6) ______ is often referred to as “survival of the fittest.”
A
Biodiversity
B
Natural selection
C
Genetic variation
D
Artificial selection
7) A trait that makes an individual different from other members of its species is a(n) _____.
A
Species
B
Genetic variation
C
Index fossil
D
Embryo
8) Body parts that are similar in origin and structure between different species are called _______.
A
Vestigial structures
B
Adaptations
C
Homologous structures
D
Chemical defenses
9) Remains of life from an earlier time are ______.
A
Fossils
B
Sedimentary rocks
C
Variations
D
Limestones
10) Which of the following is NOT a fossil?
A
Old stone tools found in a cave
B
baby mammoth found in a glacier
C
Outline of a fern found in a rock
D
Petrified wood in the desert
11) In undisturbed areas, older rock layers lie ______ younger rock layers.
A
Below
B
Above
C
On top of
D
In between
12) Which of the following is not a principle of natural selection?
A
Some variations are passed onto offspring.
B
Organisms will adapt to help members of another species survive.
C
Differences, or variations, occur among individuals of a species.
D
Some variations are helpful. Individuals with helpful variations survive and reproduce better than those without these variat
13) The viceroy butterfly, which is harmless, has adapted to look like the monarch butterfly, which is poisonous to birds. This provides the viceroy protection from predators. This is an example of what type of adaptation?
A
Mimicry
B
Camouflage
C
Symbiosis
D
Mirroring
14) A(n) _______ is any variation that makes an organism better suited to its environment.
A
Gene
B
Homologous structure
C
Adaptation
D
Genetic variation
15) A skunk spraying a predator is an example of a ______.
A
Relative dating
B
Behavior adaptation
C
mimicry
D
Structural adaptation
16) A bird making loud calls to attract a mate is an example of _____.
A
structural adaptation
B
Behavior adaptation
C
Relative dating
D
mimicry
17) Why do bison live in herds?
A
To attract mates
B
To provide camouflage
C
To protect their young
D
To gather more food
18) ________ drive adaptations in species over time.
A
Genetic diversity attracts pollinators for the banana trees.
B
If all bananas had identical DNA, they could be wiped out by a single disease.
C
Genetic diversity gives us more variety of flavors in bananas.
D
Genetic diversity allows the plants to spread their seeds to far-off locations.
19) Why was genetic diversity important for the banana?
A
Genetic diversity attracts pollinators for the banana trees.
B
Genetic diversity allows the plants to spread their seeds to far-off locations.
C
Genetic diversity gives us more variety of flavors in bananas.
D
If all bananas had identical DNA, they could be wiped out by a single disease.
20) Over many generations, what would the number of well-adapted organisms in a population be expected to do?
A
Never change
B
Increase
C
Decrease
D
Stay constant
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