Tissues — Science STD 9 — Question

The method of incorporating desirable qualities in crop varieties is:

Milk of Magnesia is:

1. A colloid.
2. A true solution.
3. A homogeneous mixture.
4. A suspension.

Of the following components of phloem is non-living:

1. Sieve tubes.
2. Companion cells.
3. Bast fibers.
4. Phloem parenchyma.

A ball is thrown vertically up-wards from the ground. Regarding the work done by air resistance, which of the following is correct?

As the size of the cell increases:

All animals are:

1. Parasitic
2. Saprophytic
3. Autotrophic
4. Heterotrophic

There are four elements P, Q, R and S having atomic numbers of 4, 18, 10 and 16 respectively. The element which can exhibit covalency as well as electrovalency will be:

1. P.
2. Q.
3. R.
4. S.

Cytoplasm is:

1. Unit mass of protoplasm.
2. Protoplasm excluding plasma membrane.
3. Protoplasm excluding plasma membrane and nucleus.
4. Protoplasm excluding plasma membrane and cell organelles.

Which one of the following is not a solution:

Which of the following would not be considered part of a cell's cytoplasm: