Gnetophytes and Ginkgoes: Characteristics and Examples

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Questions and Answers

What is the main difference between angiosperms and gymnosperms when it comes to seed enclosure?

  • Angiosperms do not produce seeds, while gymnosperms have seeds enclosed within fruits.
  • Angiosperms have seeds enclosed within a fruit, while gymnosperms have naked seeds exposed on cones. (correct)
  • Angiosperms have seeds enclosed within cones, while gymnosperms have naked seeds exposed on flowers.
  • Angiosperms have naked seeds, while gymnosperms have seeds enclosed within flowers.

Which group of plants primarily rely on wind for pollination?

  • Gymnosperms (correct)
  • Coniferophytes
  • Angiosperms
  • Eudicots

What is a unique feature of angiosperms related to fertilization that gymnosperms lack?

  • Production of multiple zygotes
  • Fertilization through animal vectors
  • Triple fertilization producing endosperm (correct)
  • Production of pollen grains

Which plant group is known for having needle-like or scale-like leaves adapted for water conservation?

<p>Gymnosperms (D)</p> Signup and view all the answers

What structure allows for the dispersal of sperm without the need for water in seed plants?

<p>Pollen (B)</p> Signup and view all the answers

Which group of plants includes species like conifers, cycads, gnetophytes, and ginkgophytes?

<p>Coniferophytes (B)</p> Signup and view all the answers

What significant feature allows angiosperms to become the most dominant plant group in terrestrial ecosystems?

<p>Variety of leaf shapes and reproductive structures (B)</p> Signup and view all the answers

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