Use the information to answer the following question.
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 from the 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? (A) They have exposed ovules. (B) They have flagellated sperm. (C) They are pollinated by animals. (D) They have flagellated sperm, and they are pollinated by animals.

Angiosperms provide an unlimited environmental and economical importance. Environmentally, they use the CO₂ we produce, and switch it into the oxygen that is pertinent to our survival. Obviously, they also provide food for a spread of organisms, including humans.

What do angiosperms produce?

Angiosperms produce their reproductive organs within a flower. Like other seed plants, angiosperms are heterosporangiate, producing pollen and ovules in several organs. Unlike most seed plants, however, the pollen and ovule-bearing organs are usually produced together during a bisporangiate strobilus called a flower.

Where is angiosperm found?

Angiosperms are vascular plants. they need stems, roots, and leaves. Unlike gymnosperms like conifers and cycads, angiosperm's seeds are found during a flower. Angiosperm eggs are fertilized and become a seed in an ovary that is usually in a flower.

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