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BIOLOGY [1 Mark Question Answer]

Pollination and fertilization · ICSE STD 9 (ICSE - English Medium). 4 questions.

Questions

[1 Mark Question Answer]

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4 questions · timed · auto-graded

Question 11 Mark
State any three structural features found in flowers which favour cross pollination.
Answer
The three contrivances in flowers which favour cross-pollination.
(i) Unisexuality (ii) Dichogamy (iii) Self- sterility.
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Question 21 Mark
Rewrite the terms in correct order in a logical sequence beginning with the term that is underlined
Stigma, Pollen tube, Pollen grains, Female gamete, Male gamete
Answer
Pollen grains Stigma Pollen tube Male gamete Female gamete
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Question 31 Mark
Rewrite the terms in correct order in a logical sequence beginning with the term that is underlined
Integuments, Funiculus, Egg. Nucellus, Embryo sac.
Answer
Funiculus, Egg Embryo sac. Nucellus Integuments
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Question 41 Mark
Rewrite the terms in correct order in a logical sequence beginning with the term that is underlined
Intine, Pollen tube, Exine, Tube nucleus, Male gametes.
Answer
Exine Intine, Pollen tube Tube nucleus, Male gametes.
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[1 Mark Question Answer] - BIOLOGY STD 9 Questions - Vidyadip