Chapter 6 Multiple Choice Questions

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. What is the current estimate of the number of land plant species?

Over 20 million correct incorrect

43,750 correct incorrect

About 500,000 correct incorrect

About 100,000 correct incorrect

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. When did the land plants first appear?

About 800 Ma correct incorrect

About 500 Ma correct incorrect

About 5 Ma correct incorrect

About 1.5 Ga correct incorrect

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. From what algal group did the land plants emerge?

Terrophytes correct incorrect

Haplophytes correct incorrect

Glaucophytes correct incorrect

Streptophytes correct incorrect

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. What were the first true land plants?

Chlorophytes correct incorrect

Ferns correct incorrect

Bryophytes correct incorrect

Pteridophytes correct incorrect

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. What is the main characteristic feature of vascular plants?

Stomata correct incorrect

Cuticle correct incorrect

Xylem and phloem correct incorrect

Chlorophyll correct incorrect

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. When did the first trees appear?

About 450 Ma correct incorrect

About 150 Ma correct incorrect

About 10 Ma correct incorrect

About 390 Ma correct incorrect

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. For how long did the age of gymnosperms last?

Ten million years correct incorrect

100 million years correct incorrect

Almost 200 million years correct incorrect

Six million years correct incorrect

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. What is the characteristic feature of angiosperms?

Wood correct incorrect

Roots correct incorrect

Leaves correct incorrect

Flowers correct incorrect

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. What is the most successful group of flowering plants?

Monocots correct incorrect

Eudicots correct incorrect

Mangolids correct incorrect

Gymnosperms correct incorrect

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. Why is the ghost plant, Monotropa uniflora, completely white?

To attract insect pollinators correct incorrect

For camouflage in the snow correct incorrect

It produces a white pigment correct incorrect

It is non-photosynthetic correct incorrect