The Fundamental Unit of Life — Science STD 9 — Question

For an element with atomic number 19, the 19th electron will occupy:

Rough ER contains:

1. Etoxofocation centres.
2. Carbohydrate synthesizing machinery.
3. Ribosomes.
4. Lysosomes.

Our alternatives are given to each of the following incomplete statements/questions, choose the right answer.
Uniform circular motion is called continuously accelerated motion mainly because

The acceleration produced by a force of 5N acting on a mass of 20kg in m/s² is:

The acceleration produced by a force of 5N acting on a mass of 20kg in m/s² is:

1. 4
2. 100
3. 0.25
4. 2.5

.............. have their own DNA:

Natural system of classification employs:

1. Compleify of cell structure.
2. Complexity of body structure.
3. Organisation.
4. All the above.

Which of the following represent the suitable condition for the liquefaction of gases?

Guard cells are present in:

1. Cork.
2. Cortex.
3. Stomata.
4. Vascular bundle.

The efferent part of neqron is:

1. Axon.
2. Dendrite.
3. Cyton.
4. Both (a) and (b).