The Next Few Questions Refer to the Following Description

question 88

Multiple Choice

The next few questions refer to the following description.
The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the Age of the Dinosaurs. Though their sperm are flagellated, their ovules are pollinated by beetles. These beetles get nutrition (they eat pollen) and shelter from the microsporophylls. Upon visiting megasporophylls, the beetles transfer pollen to the exposed ovules. In cycads, pollen cones and seed cones are borne on different plants. Cycads synthesize neurotoxins, especially in the seeds, that are effective against most animals, including humans.
-Which feature of cycads makes them similar to many angiosperms?
1) They have exposed ovules.
2) They have flagellated sperm.
3) They are pollinated by animals.

• A) 1 only
• B) 2 only
• C) 3 only
• D) 2 and 3
• E) 1, 2, and 3

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Definitions:

Forearc Basin

A sedimentary basin that lies between the volcanic arc and the trench in a convergent plate boundary.

Sedimentary Unit

A layer of sedimentary rock with distinguishable characteristics that set it apart as a visually identifiable segment of a stratigraphic sequence.

Pluton

A body of intrusive igneous rock that solidified below the surface of the earth.

Shear Zone

A region of the Earth's crust where rocks have been deformed by shear stress, leading to the alteration of their structure and the development of foliation.