Improvement in Food Resources — Science STD 9 — Question

Howis a bacterial cell different from an onion peel cell?

Algae are characterized by:

1. Pyrenoids.
2. Aquatic habit.
3. Unicellular sex organ.
4. All of the above.

___ is grown in mixed cropping:

Which of the following group of plants is called vascular cryptogams?

1. Thallophyta.
2. Bryophyte.
3. Pteridophyta.
4. Angiospermae.

Reproductive structure are flowers in:

1. Gymnosperms.
2. Pteridophytes.
3. Angiosperms.
4. Both (a) and (b).

............... plays a crucial role in detoxifying many poisons and drugs in a cell.

Guard cells are present in:

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

Each cell has a dense double membrane bounded structures inside it is called as:

Which type of tissue forms glands?

1. Connective
2. Epithelial
3. Nervous
4. Muscle

Which of the following is not a desirable feature of a genetically modified plant?