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