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Which of the following is a major trend in land plant evolution over the past 200 million years?


A) the trend toward smaller size
B) the trend toward a gametophyte-dominated life cycle
C) the trend toward a sporophyte-dominated life cycle
D) the trend toward larger gametophytes

Correct Answer

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Which of the following statements correctly describes a portion of the pine life cycle?


A) Female gametophytes use mitosis to produce eggs.
B) Seeds are produced in pollen-producing cones.
C) Pollen grains contain female gametophytes.
D) A pollen tube slowly digests its way through the triploid endosperm.

Correct Answer

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Which of the following is a key feature of seed plants facilitating life on land?


A) homospory
B) pollen
C) reduced sporophytes
D) spores

Correct Answer

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Within a gymnosperm megasporangium, which of the following develops before the others after fertilization occurs?


A) megaspore
B) sporophyte embryo
C) egg cell
D) female gametophyte

Correct Answer

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