Motion — Science STD 9 — Question

Which part of the cell contains genetic information?

“Drones” in the honeybee colony are born out from;

Permanent tissues differ from meristematic tissue in:

1. Inability to divide.
2. Attainment of definite shape and size.
3. Performing a distinct function.
4. All the above.

Wind causes weathering of rocks through:

1. Chemical change.
2. Abrasion.
3. Mechanical force.
4. Frost action.

What is the mass number of ₁₇​C1³⁵ ?

A man stands at one end of a long steel pipe hits it with a hammer. Another man standing at the other end of the pipe hear 2 seconds. This is because:

The inertia of an object tends to cause an object:

1. To increase its speed.
2. To decrease its speed.
3. To resist a change in its state of motion.
4. To decelerate due to friction.

The force that keeps the body in a circular path and is acting towards the center is called?

Which of the following is not a feature of chordates?

Which one of the following possesses potential energy?