MCQ
Pollen grains are produced by:
- ALeaves
- BStamens
- CGynoecium
- DPistil
Explanation:
Stamens are the male reproductive structure of the plant.
They produce pollen grain by the process of microsporogenesis.
Leaves are the vegetative part of plants.
The gynoecium is the female reproductive part of the plant that produces the ovum.
The pistil is synonymous with gynoecium.
Hence, pollen grains are produced by "stamens".
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| Column-I | Column-II | ||
| (P) | Lichens | (i) | Parasitism |
| (Q) | Abingdon tortoise and goat | (ii) | Commensalism |
| (R) | Sea anemone and clown fish | (iii) | Competition |
| (S) | Human and liver fluke | (iv) | Mutualism |
$(a)$ Darwin's Finches of Galapagos islands.
$(b)$ Herbicide resistant weeds.
$(c)$ Drug resistant eukaryotes.
$(d)$ Man$-$created breeds of domesticated animals like dogs.