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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 takes a much longer time
B
artificial selection can only be performed on animals, such as dogs
C
artificial selection is done in a lab
D
with artificial selection, humans decide which traits to pass on
2) Why are some dog breeds such good hunters?
A
over time, good hunting traits were chosen by natural selection
B
over and over, humans have bred good hunting dogs together
C
it has been random luck, which is why it takes so long
D
due to the environmental pressures they are exosed to
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
Artificial selection is a new science
B
Humans began practicing artificial selection thousands of years ago
C
There is no proof of artificial selection being successful
D
Artificial selection is best done by scientists
5) All dog breeds are the same species. What does that mean?
A
Different dog breeds have vastly different genetics
B
They cannot successfully reproduce together
C
Dogs of different breeds cannot mate together
D
They can successfully reproduce 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
Today's domesticated chickens are a different breed from the ones in the 1960's
B
The desirable traits in today's domesticated chickens were chosen by humans
C
Selective breeding has created larger breeds over time
D
Today's domesticated chickens are the same breed as in the 1960's, but better fed
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
selective breeding takes much less time than genetic engineering
D
genetic engineering selects between genes that exist naturally and selective breeding 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 cuts down on the use of chemical pesticides
C
it is less harmful to insects
D
it is easier than spraying chemical pesticides
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 bear
C
the skunk
D
the lion
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
Both natural selection and artificial selection rely on existing, naturally occurring, genes
D
Artificial selection relies on existing genes, but natural selection creates new genes
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