NCERT Class VII Science Solutions: Chapter 12-Reproduction in Plants Part 3

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SHORT ANSWER QUESTIONS

Question 13:

In the diagram given in Figure label the parts marked (a), (b) and (c).

Result for Figure label the parts marked (Q)

Figure Label the Parts Marked (Q)

Result for Figure label the parts marked (Q)

Answer:

Result for Figure label the parts marked (A)

Figure Label the Parts Marked (A)

Result for Figure label the parts marked (A)

Question 14:

When you keep food items like bread and fruits outside for a long time especially during the rainy season, you will observe a cottony growth on them.

  1. What is this growth called?

  2. How does the growth take place

Answer:

  1. It is bread mould, a fungus.

  2. They develop from spores.

Question 15:

Group the seeds given in Figure (i) to (iii) according to their means of dispersion.

  1. Seed dispersed by wind

  2. Seed dispersed by water

  3. Seed dispersed by animal

Result for Seed dispersed by wind, water and animal

Seed Dispersed by Wind, Water and Animal

Result for Seed dispersed by wind, water and animal

Answer:

  1. Seed dispersed by wind the seed of maple (i) winged seed which are light in weight and seed of aak or madar (ii) hairy outgrowth, which makes it lighter can be dispersed by wind.

  2. Seed dispersed by water seeds having spongy form and floating ability which are dispersed by water to different places.

  3. Seed dispersed by animals seeds of Xanthium (iii) are spiny with on them which gets attached to the bodies of animals and are carried to distant places.

None of the seed given in the figure is dispersed by water.

Question 16:

Coconut is a large and heavy fruit. How is it adapted for dispersal by water?

Answer:

Coconut fruit has spongy fibers, which helps it to float in water.