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What causes a branch in a cladogram?
A) a derived trait
B) an offspring
C) an ancestral trait
D) an outgroup
Answers: 2
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What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?
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Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.
Answers: 1
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Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Biology, 22.06.2019 15:30
Slow down transpiration by the stomata question 9 options: a guard cells; closing b chloroplasts; closing c guard cells; opening d chloroplasts; opening
Answers: 1
What causes a branch in a cladogram?
A) a derived trait
B) an offspring
C) an a...
A) a derived trait
B) an offspring
C) an a...
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