What is the first step in CAM photosynthesis?

A) Plants open their stomata at night to take in carbon dioxide.
B) Plants open their stomata at any time to take in carbon dioxide.
C) Plants close their stomata to raise internal temperatures.
D) Plants open their stomata to raise internal temperatures.
E) Plants temporarily bind carbon dioxide to a holding molecule.


A) Plants open their stomata at night to take in carbon dioxide.

Biology & Microbiology

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Indicate whether the statement is true or false.

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Like all fatty acids, oleic acid is extremely hydrophobic. Why?

a. Because the hydrocarbon tails are charged. b. Because long hydrocarbon tails cannot interact with water. c. Because it has a multi-ringed structure. d. None of the above.

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Arrange the following stages of oogenesis in sequential order

1) secondary oocyte 2) oogonium 3) ovum 4) primary oocyte a. 4 ? 1 ? 2 ? 3 b. 4 ? 3 ? 2 ? 1 c. 3 ? 2 ? 4 ? 1 d. 2 ? 3 ? 4 ? 1 e. 2 ? 4 ? 1 ? 3

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Which of the following elements will have more than two electrons and have a full outer orbital?

A. Ne B. O C. He D. N E. C

Biology & Microbiology