Plantae Multiple Questions and Answers.
Exercise Questions ::
Diversity of Life
Answer: Option Answer: a
Explanation:
Explanation: Gymnosperm is vascular plants whose seeds are not covered by the ripened
ovary (fruit). These are basically woody plants and considered as fruitless plants.
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7. 8. Double fertilization is a characteristic feature of which of these groups of plants?
A. a) Chlorophyta B. b) Thallophyta C. c) Angiosperm D. d) Bryophytes
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Answer: Option Answer: c
Explanation:
Explanation: Angiosperms are flowering plants which are a major group of plants. Double fertilization is the characteristic of angiosperm plants, produce embryo as well as endosperm.
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Answer: Option Answer: d
Explanation:
Explanation: A flower has four types of structures called four whorls i.e. nonessential whorls
(Calyx and Corolla) and essential whorls (gynocium and androcium).
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9. 10. Melia, a flower has a pistil of two or more fused carpels, which of the following condition describe this?
A. a) One carpel B. b) Fused carpel C. c) Fused androcium D. d) One androcium
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Answer: Option Answer: b
Explanation:
Explanation: Gynoecium is divided into simple and compound. Simple gynoecium is made
up of only one carpel e.g. pea. Compound gynoecium is the one in which pistil of two or
more carples is fused e.g. Melia.
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Answer: Option Answer: b
Explanation:
Explanation: Gynandrous is a condition where stamen attached to carpels. It is mainly found
in calotropis. In epiphyllous stamen attached to the perianth, found in the Liliaceae. The
condition where stamen attached to pistil is called epipetalous e.g. sunflower. Synandrous
is the condition of attachment of anthers of different stamens.
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