Tissues — Science STD 9 — Question

The ultimate source of energy in an ecosystem is:

1. Sunlight.
2. Glucose.
3. Protein.
4. Green plants.

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

Which of the following cells can be seen with a naked eye?

The method of incorporating desirable qualities in crop varieties is:

‘Taxa’ differs from “taxon” due to:

1. This being a higher taxonomic category than taxon.
2. This being the lower taxonomic category than taxon.
3. This being the singular of taxon.
4. This being the singular of taxon.

Most abundant animal tissue is:

Which of the following components of xylem is living:

Amoeba belongs to kingdom:

1. Monera.
2. Protista.
3. Fungi.
4. Animalia.

Solute concentration is higher is the external solution:

1. Hypotonic.
2. Isotonic.
3. Hypertonic.
4. None of the above.

Sex organs are unicellular and non-jacketed in:

1. Algae.
2. Bryophytes.
3. Pteridophytes.
4. Gymnosperms.