The Fundamental Unit of Life — Science STD 9 — Question

Genetic material of prokaryotes is called:

1. Nucleoid.
2. Nucleolus.
3. Plasmid.
4. Mesosome.

Draw diagram of:

1. Nitrogen cycle.
2. Carbon cycle.

Which is the following is known as “physical basis of life”?

Fish is an important aquatic food which is rich in proteins. The act of capturing, preservation and utilization of fishes is called fish culture.
Among the following statements choose the option which does not describe the benefit of fish culture?

Which of the following is called as the brain of the cell?

Name the non-nucleated blood cells.

Growing different crops in the same field in a pre planned succession is:

............... takes part in the formation of lysosomes:

Which of the following is not a draught animal?

Phylum Chordata is named after the occurrence of:

1. Notochord.
2. Dorsal hollow nerve cord.
3. Occurence of postnatal tail.
4. Presence of gill slits.