A researcher finds a plant group that does not need water for fertilisation and has seeds which are not enclosed in fruits. Which plant group is being described?
Gymnosperms
The two key clues are: fertilisation does NOT need water, and seeds are NOT enclosed inside fruits. Bryophytes and pteridophytes both need external water for their motile sperm to swim to the egg, so they are ruled out. Angiosperms produce seeds enclosed inside fruits (they are the flowering plants), so they are also ruled out.
Gymnosperms match both clues: they are seed plants with pollen carried by wind, so no external water is needed for fertilisation, and their seeds are borne naked on the surface of cone scales (not inside a fruit). Common examples are pine, cycads and Ginkgo.
Hence, the answer is Gymnosperms.
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Important Questions from Botany
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Fungi are always
Which of the following does NOT form an essential part of the process of photosynthesis?
Organisms that generate energy using light are:
Amarbel ( Cuscuta ) is a
