1. The first land plants were bryophytes, and later ferns, then gymnosperms, then angiosperms evolved. What key adaptation distinguishes gymnosperms from ferns?
A. Gymnosperms go through alternation of generations.
B. Gymnosperms produce pollen and do not require water to reproduce.
C. Gymnosperms have a vascular system, which allows them to grow taller.
D.The gymnosperms can grow larger gametophytes.
E. Gymnosperms can produce flowers and fruits to aid in seed dispersal.
2.The first land plants were bryophytes, and later ferns, then gymnosperms, then angiosperms evolved. What key adaptation distinguishes the ferns from the bryophytes?
A. Ferns go through alternation of generations.
B.Ferns do not require water to reproduce.
C. The ferns are also heterotrophs.
D.Ferns have a vascular system, which allows them to grow taller.
E. The ferns are able to do photosynthesis.
3.Why did the authors choose to look specifically for vertebrate mitochondrial genes in their core samples?
A. Animal cells do not have chloroplasts.
B. They wanted to distinguish animal mitochondria from plant mitochondria.
C.Animal cells do not have a nucleus.
D.Only vertebrates eat plants.
E. Animals would have been present in Beringia before plants.
1. The first land plants were bryophytes, and later ferns, then gymnosperms, then angiosperms evolved. What key adaptation distinguishes gymnosperms from ferns?
A. Gymnosperms go through alternation of generations.
B. Gymnosperms produce pollen and do not require water to reproduce.
C. Gymnosperms have a vascular system, which allows them to grow taller.
D.The gymnosperms can grow larger gametophytes.
E. Gymnosperms can produce flowers and fruits to aid in seed dispersal.
2.The first land plants were bryophytes, and later ferns, then gymnosperms, then angiosperms evolved. What key adaptation distinguishes the ferns from the bryophytes?
A. Ferns go through alternation of generations.
B.Ferns do not require water to reproduce.
C. The ferns are also heterotrophs.
D.Ferns have a vascular system, which allows them to grow taller.
E. The ferns are able to do photosynthesis.
3.Why did the authors choose to look specifically for vertebrate mitochondrial genes in their core samples?
A. Animal cells do not have chloroplasts.
B. They wanted to distinguish animal mitochondria from plant mitochondria.
C.Animal cells do not have a nucleus.
D.Only vertebrates eat plants.
E. Animals would have been present in Beringia before plants.
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Related textbook solutions
Related questions
1. Select the true statements concerning tracheids.
| Tracheids are responsible foranchoring the plant to a substrate. | |
| Pterophytes lack tracheids but haveeuphylls. | |
| Without tracheids colonization ofland would not have been possible. | |
| All of the large dominant extantland plants are tracheophytes. | |
| Tracheids allow for efficienttransport of water over longer distances. |
2. Plants lacking well-developed conducting systems such asmosses, liverworts, and hornworts have been called
| sporophytes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| bryophytes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| gymnosperms. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| gametophytes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| angiosperms. 3.Select the true statements concerning gametophytes andsporophytes.
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