Diversity In Living Organisms — Science STD 9 — Question

Which would have a greater effect on the kinetic energy of an object: doubling the mass or doubling the velocity?

What do you mean by symptoms of a disease?

1. Suitcase dropped from a height.
2. A bicycle moving with constant velocity on a straight road.
3. The rope does not move in a tug of war on applying force at both ends.

Name three types of simple tissues of plants.

Give one use of lichen.

Name two exotic and two indigenous breeds of cow.