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8.MS-LS4-5
Test Description: 8.MS-LS4-5
Instructions: Answer all questions to get your test result.
1) How is artificial selection different from natural selection?
A
artificial selection can only be performed on animals, such as dogs
B
artificial selection is done in a lab
C
with artificial selection, humans decide which traits to pass on
D
artificial selection takes a much longer time
2) Why are some dog breeds such good hunters?
A
it has been random luck, which is why it takes so long
B
due to the environmental pressures they are exosed to
C
over time, good hunting traits were chosen by natural selection
D
over and over, humans have bred good hunting dogs together
3) What does the US Food and Drug Administration (FDA) say about genetically modified organisms (GMOs)?
A
they are unsafe
B
they are not helping solve any problems
C
there are too many of them
D
they are safe
4) Which of the following statements is true?
A
Artificial selection is a new science
B
Artificial selection is best done by scientists
C
Humans began practicing artificial selection thousands of years ago
D
There is no proof of artificial selection being successful
5) All dog breeds are the same species. What does that mean?
A
They can successfully reproduce together
B
Dogs of different breeds cannot mate together
C
They cannot successfully reproduce together
D
Different dog breeds have vastly different genetics
6) Today's domesticated chicken breeds are twice as big as the breeds in the 1960's. Which statement below is most likely INCORRECT?
A
The desirable traits in today's domesticated chickens were chosen by humans
B
Selective breeding has created larger breeds over time
C
Today's domesticated chickens are the same breed as in the 1960's, but better fed
D
Today's domesticated chickens are a different breed from the ones in the 1960's
7) What is a main difference between selective breeding and genetic engineering?
A
genetic engineering selects between genes that exist naturally and selective breeding alters genes in a lab
B
genetic engineering has been practiced much longer than selective breeding
C
selective breeding takes much less time than genetic engineering
D
selective breeding selects between genes that exist naturally and genetic engineering alters genes in a lab
8) Genetically engineered crops which are resistant to pesticides are common GMOs. Which of the following statements might explain why it is done?
A
it makes the crops bigger
B
it is easier than spraying chemical pesticides
C
it is less harmful to insects
D
it cuts down on the use of chemical pesticides
9) All of today's dog breeds are the same species. Which modern animal are they most closely related to?
A
the bear
B
the wolf
C
the lion
D
the skunk
10) Which of the following statements is correct?
A
In artificial selection, nature chooses the desirable traits; in natural selection, humans choose
B
Natural selection relies on existing genes, but artificial selection creates new genes
C
Artificial selection relies on existing genes, but natural selection creates new genes
D
Both natural selection and artificial selection rely on existing, naturally occurring, genes
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