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Adaptations And Variations Review
Test Description: Adaptations and variations review
Instructions: Answer all questions to get your test result.
1) Why do birds have hollow bones?
A
extra storage for food
B
to give them structure and the ability to fly
C
helps them walk
D
provide balance
2) How do gills help fish survive?
A
release carbon dioxide into the air
B
help them breathe above ground
C
get oxygen out of the air
D
get oxygen out of the water
3) Why would a farmer selectively breed his tomatoes?
A
make them taste better
B
make them grow slower
C
he would not want to do this
D
to make them smaller
4) An adaptation is ...
A
organism that look different
B
external only
C
internal only
D
change for survival
5) A variation is ...
A
internal only
B
external only
C
differences between organisms of the same species
D
changes for survival
6) used for identification or organisms
A
dichotomous keys
B
stimuli
C
natural selection
D
taxonomy
7) Which is not an example of natural selection?
A
mice changing fur color to camouflage themselves
B
the finches of the Galapagos Islands
C
migration and hibernation
D
Survival of the fittest
8) Selective breeding is ...
A
when humans breed for a favorable trait
B
survival of the fittest
C
asexual reproduction
D
regeneration
9) Which is not an example of variations in organisms?
A
hibernation
B
the different species of finches having different songs for mates
C
natural selection
D
diverse beaks and legs in birds
10) Which is an example of an internal structure adaptation?
A
mice having different fur color
B
birds having different beaks
C
hollow bones in birds
D
birds have different feet
*select an answer for all questions
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