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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
provide balance
C
helps them walk
D
to give them structure and the ability to fly
2) How do gills help fish survive?
A
help them breathe above ground
B
release carbon dioxide into the air
C
get oxygen out of the air
D
get oxygen out of the water
3) Why would a farmer selectively breed his tomatoes?
A
he would not want to do this
B
make them grow slower
C
make them taste better
D
to make them smaller
4) An adaptation is ...
A
internal only
B
external only
C
organism that look different
D
change for survival
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
dichotomous keys
B
taxonomy
C
stimuli
D
natural selection
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
survival of the fittest
B
regeneration
C
when humans breed for a favorable trait
D
asexual reproduction
9) Which is not an example of variations in organisms?
A
hibernation
B
diverse beaks and legs in birds
C
natural selection
D
the different species of finches having different songs for mates
10) Which is an example of an internal structure adaptation?
A
birds having different beaks
B
birds have different feet
C
mice having different fur color
D
hollow bones in birds
*select an answer for all questions
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