Across
- 2. The process of formation of soil
- 3. Pigment in red blood cells
- 4. Organisms that can survive in the absence of air
- 7. The mode of nutrition in which organisms make food themselves from simple substances
- 9. A cyclone is called a _____________ in the American continent
- 10. A microscopic single-celled organism found in pond water
Down
- 1. A reliable measure of hotness of an object –
- 5. Ultimate source of energy for all living organisms
- 6. The mode of taking food by an organism and its utilisation by the body
- 8. The jelly-like substance surrounding the nucleus of a cell