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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 is done in a lab
B
artificial selection can only be performed on animals, such as dogs
C
artificial selection takes a much longer time
D
with artificial selection, humans decide which traits to pass on
2) Why are some dog breeds such good hunters?
A
due to the environmental pressures they are exosed to
B
over time, good hunting traits were chosen by natural selection
C
over and over, humans have bred good hunting dogs together
D
it has been random luck, which is why it takes so long
3) What does the US Food and Drug Administration (FDA) say about genetically modified organisms (GMOs)?
A
they are unsafe
B
they are safe
C
there are too many of them
D
they are not helping solve any problems
4) Which of the following statements is true?
A
There is no proof of artificial selection being successful
B
Artificial selection is a new science
C
Humans began practicing artificial selection thousands of years ago
D
Artificial selection is best done by scientists
5) All dog breeds are the same species. What does that mean?
A
They can successfully reproduce together
B
They cannot successfully reproduce together
C
Different dog breeds have vastly different genetics
D
Dogs of different breeds cannot mate together
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
selective breeding selects between genes that exist naturally and genetic engineering alters genes in a lab
B
genetic engineering has been practiced much longer than selective breeding
C
genetic engineering selects between genes that exist naturally and selective breeding alters genes in a lab
D
selective breeding takes much less time than genetic engineering
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 is easier than spraying chemical pesticides
B
it makes the crops bigger
C
it cuts down on the use of chemical pesticides
D
it is less harmful to insects
9) All of today's dog breeds are the same species. Which modern animal are they most closely related to?
A
the wolf
B
the lion
C
the bear
D
the skunk
10) Which of the following statements is correct?
A
Both natural selection and artificial selection rely on existing, naturally occurring, genes
B
In artificial selection, nature chooses the desirable traits; in natural selection, humans choose
C
Artificial selection relies on existing genes, but natural selection creates new genes
D
Natural selection relies on existing genes, but artificial selection creates new genes
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