Cell size, shape and number — task. Science CBSE, Class 9.

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Choose the correct sentence:

1.

For motility, sperms have cilia. And eggs shaped like a branch of the tree to accommodate maximum nutrients.
For motility, sperms have tail. And eggs are spherical shape to accommodate maximum nutrients.

2.

Microvilli foldings decreases the surface area for absorption.
Microvilli has more than one nuclei.
Microvilli foldings increases the surface area for absorption.

3.

In human, we have approximately 37.2 million cells; each of these cells varies in shapes and sizes.
In human, we have approximately 37.2 trillion cells; each of these cells varies in shapes and sizes.

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