Page 106 - Ripples SCIENCE 7 - TEJPUR Edition 2024 Answer Key

Exercise

A. Tick (3) the correct answer.

1. Seed dispersal takes place by ................... .

(a) Wind (b) Water (c) Animals (d) All of the above

Ans. (d)
2. The reproductive part of a plant is the ................... .

(a) Flower (b) Stem (c) Leaf (d) Root

Ans. (a)

3. Which of the following propagates through spores?
(a) Rose (b) Rhizopus (c) Potato (d) Ginger

Ans. (b)

4. Bryophyllum can reproduce by its ................... .

(a) Stem (b) Leaves (c) Root (d) Flower
Ans. (b)

5. Seeds of drumstick and maple are carried to long distances by wind because they are

................... .

(a) Winged seeds (b) Large and hairy seeds
(c) Long and ridged fruits (d) Spiny seeds

Ans. (a)

6. ................. is the male part of the flower that produces pollen grains.

(a) Stigma (b) Anther
(c) Filament (d) Style

Ans. (b)

7. A ................... is a short, stout, solid and fleshy underground stem.

(a) Rhizome (b) Bulb (c) Corm (d) Tuber
Ans. (c)

8. ......................... reproduces by budding.

(a) Spirogyra (b) Algae (c) Rhizopus (d) Yeast

Ans. (d)
B. Fill in the blanks.

1. In .................. reproduction, a new plant is formed by a single parent.

Ans. asexual

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