Biology
Look at the table given below and identify the kind of pollination that usually occurs in the flower mentioned.
| Flower | Kind of pollination |
|---|---|
| Hibiscus | P |
| Hydrilla | Q |
| Wheat | R |
- P — Entomophily, Q — Hydrophily, R — Anemophily
- P — Hydrophily, Q — Elephophily, R — Anemophily
- P — Ornithophily, Q — Anemophily, R — Elephophily
- P — Ornithophily, Q — Hydrophily, R — Entomophily
Answer
P — Entomophily, Q — Hydrophily, R — Anemophily
Reason — Flowers of Hibiscus are large, colourful and scented which attracts insects, hence pollination is by insects (Entomophily).
Hydrilla is an aquatic plant so pollination happens via water (Hydrophily).
Flowers of wheat are small, non-showy hence pollen grains are carried by wind (Anemophily).
Ornithophily is pollination by birds. So, flowers are bright, showy colours, have nectar. Elephophily, also called blepophily, refers to pollination by elephants.
Related Questions
Which of these does not belong to the embryo sac of a flower?
- Generative nucleus
- Antipodal cells
- Polar Nuclei
- Synergids
The given figures A and B show …………… and …………… conditions which favour cross-pollination.
- Herkogamy and Heterostyly
- Heterostyly and Herkogamy
- Herkogamy and Homogamy
- Heterostyly and Homogamy
Given below is the internal structure of an ovule. Read the information below the diagram and fill in the blanks:
Ovule is located in the inner part of the ovary. It is destined to become the seed and the ovary to become the fruit. The number of ovules in the ovary vary from species to species. It can be one or more.
Each ovule has one or two protective coverings, the integuments. The integuments leave a small opening called the (a) …………… at one end. Enclosed by the integuments is the (b) ………………(a mass of food laden cells), and further inside it, is the embryo sac. Embryo sac contains one (c) …………… and two (d) …………… at one end. Three (e) …………… cells are found at the opposite end of embryo sac.
State the name of the chief pollinating agent against the corresponding plant by choosing from those given in brackets.
- Dahlia……(Crow, butterflies, mosquito).
- Maize…….(Bees, locusts, rain, wind).
- Vallisneria………(Wind, water, ants, rabbits).