Fossil Evidence Places the Origin of Angiosperms in the Early

question 50

Multiple Choice

Fossil evidence places the origin of angiosperms in the early Cretaceous period,at least 130 million years ago.By 100 million years ago,all of today's major lineages of angiosperms were in place.Angiosperms make up 95% of all modern plant species.Which of the following may help explain the rapid success of angiosperms?

• A) use of the wind to disperse pollen and seeds
• B) Animals eating the plants helped to disperse both pollen and seeds.
• C) use of the wind to disperse spores
• D) use of water to disperse pollen and seeds
• E) Flowers and fruits help protect and disperse both pollen and seeds.

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Definitions:

Indifference Schedule

A graphical representation in economics that shows combinations of goods among which a consumer is indifferent.

Unit of Y

A hypothetical unit used in economic models to represent output or goods produced.

Fourth Unit

Referring to a specific, individual measure or item in a sequence, often used to highlight a particular point in quantitative analysis.

Unit of X

A standard measure or quantity of something, used as a means of expressing or describing the amount.