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