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Adaptations
Test Description: Natural selection
Instructions: Answer all questions to get your test result.
1) HOLLOW BONES keep birds light enough to fly. This is an
A
internal adaptation
B
example of bioluminescence
C
external feature
D
behavioral adaptation
2) Xylem tissue
A
exchanges oxygen and carbon dioxide between the plant and atmosphere
B
transports sugar and minerals from the plant down into the soil
C
transports water and minerals from the soil, so plants can grow tall
D
collects sunlight needed for photosynthesis.
3) Gills
A
allow the fish to use the oxygen in the air
B
allow fish to use oxygen that is dissolved in water
C
break down water into hydrogen and carbon dioxide
D
let fish breathe oxygen in both the water and in air
4) Plants wilting and drooping is an internal stimulus caused by
A
lack of (not enough) turgor pressure
B
not enough sunlight
C
too much sunlight
D
too much water
5) A seedlings response to gravity makes roots grow down and stems grow up. This is
A
phototropism
B
xylem tissue
C
turgor pressure
D
geotropism (also called gravitropism)
6) Plants bend toward light
A
xylem tissue
B
phototropism
C
geotropism (also called gravitropism)
D
turgor pressure
7) You can tell what food a bird eats mainly by
A
the size of its feet
B
the color of its feathers
C
the shape of its beak
D
the sound of its song
8) Traits that help organisms survive long enough to reproduce are
A
dominant traits
B
recessive genes
C
chromosomes
D
adaptations
9) A mistake made when DNA copies itself may result in a new trait (good, bad, or neutral).
A
mutation
B
hybridization
C
camoflauge
D
migration
10) Laying way more eggs that can survive on the resources in an environment
A
mass production
B
overproduction
C
reproduction
D
overpopulation
11) differences in traits (in the same species)
A
struggle to survive
B
genetic variation
C
uniform offspring
D
overproduction
12) An example of genetic variation within a species
A
some animals get eaten
B
slight difference in the fur color the were born with
C
prey animals that hurt themselves while escaping predators
D
identical homes or habitats
13) Organisms get eaten. This is an example of
A
overproduction
B
genetic variation
C
successful reproduction
D
the struggle to survive
*select an answer for all questions
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