All of the following are processes that occur during angiosperm reproduction EXCEPT
A) one megaspore degenerates, and the other three divide once to produce the six-celled embryo sac.
B) the megaspore mother cell undergoes meiosis to produce four haploid megaspores.
C) the tube cell produces the pollen tube.
D) the generative cell forms two sperm cells via mitosis.
E) the microspore mother cell undergoes meiosis to produce four haploid microspores.
A
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Which of the following is not true of phospholipids?
A) Phospholipids are important in membrane structure. B) Serine is a molecule that may be part of a phosphoglyceride. C) Phosphatidic acid contains two fatty acids and a phosphate group. D) Sphingolipids are the predominant phospholipid in membranes. E) Phospholipids are amphipathic.
Which of the following is a marsupial mammal?
a. echidna b. hydrax c. Tasmanian devil d. manatee
The evolutionary effects of genetic drift are greatest when _____.
A) the population size is large B) intraspecific competition is intense C) the population size is small D) intraspecific competition is weak E) sexual selection occurs
Which type of plant can utilize the Calvin cycle?
A. C3, C4, and CAM plants B. CAM plants C. C3 plants D. C4 plants