Which of the following statements is true of the pine life cycle?

A) The pine tree is a gametophyte.
B) Male and female gametophytes are in close proximity during gamete synthesis.
C) Conifer pollen grains contain male gametophytes.
D) Double fertilization is a relatively common phenomenon.


C

Biology & Microbiology

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The central nervous system first forms during

A. fertilization. B. cleavage. C. neurulation. D. gastrulation. E. organogenesis.

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The use of transport proteins to return a neurotransmitter from the synapse back to the presynaptic

cells is called a. enzymatic breakdown. b. diffusion. c. repackaging. d. storage. e. reuptake.

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The ____ biome is found in states such as Iowa, Minnesota, Nebraska, and other Midwestern states, and is

characterized by thick, rich soils, and a thick mat of sod. a. savannah b. tallgrass prairie c. taiga d. temperate deciduous forest e. chaparral

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How do Archaea and Bacteria differ?

What will be an ideal response?

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