Sound — Science STD 9 — Question

The codes for the specific proteins produced by a cell lies in the ________.

Which of the following helps in repair of tissue and fills up the space inside the organ?

An apple of mass 100g falls from a tree because of gravitational attraction between the earth and the apple. If the magnitude of force exerted by the earth on the apple be F₁, and the magnitude of force exerted by the apple on the earth be F₂, then:

1. F₁ is very much greater than F₂
2. F₂ is very much greater than F₁
3. F₁ is only a little greater than F₂
4. F₁ and F₂ are exactly equal.

Find out the correct sentence:

What will cause an object to move?

The growing of different crops on a piece of land in pre-planned succession is called: 

In a compound, the ratio of the atoms or element by mass remains always the same irrespective of:

........ management is controlling the selection, timing and amount of nutrient supply to the crops:

Tendon is a structure which connects:

1. A bone with another bone.
2. A muscle with a bone.
3. A nerve with a muscle.
4. A muscle with a muscle.

The term chromosome was given by: