Unit Test — Unit test Answers

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If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result?

A
Less water would be available on Earth’s surface.
B
Less solar energy would reach Earth’s atmosphere.
C
More oxygen gas would be found in Earth’s atmosphere.
D
More carbon dioxide gas would be found in Earth’s atmosphere.
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Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?

A
fertilization
B
independent assortment
C
crossing over
D
chromosome replication
23

In the study of cancer, researchers have used different types of cells, different environmental conditions, and different experimental designs. But, all researchers have arrived at the same conclusion. What does this say about the conclusion?

A
It is well supported.
B
It is weakly supported.
C
It is inconclusive.
D
It is refuted.
24

Which specialized cell type would be found lining the trachea, the part of the body that brings air to the lungs?

A
blood
B
epithelial cells
C
neuron
D
muscle cells
25

How are the products represented in the chemical equation for photosynthesis?

A
O2 + 6CO2
B
C6H12O6 + 6H2O
C
6CO2 + 6H2O
D
C6H12O6 + 6O2

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