Across
- 4. Animals and most other organisms take in food prepared by plants.
- 6. carry oxygen-rich blood from the heart to all parts of the body
- 7. Carbon dioxide from air is taken in through the tiny pores
- 9. breaks down the starch into sugars
- 12. breakdown of complex food into simpler substance
- 13. is a microscopic single-celled organism found in pond water
- 14. taking in of air rich in oxygen into the body is called
- 15. Poor conductors are
Down
- 1. reliable measure of the hotness of an object
- 2. is the fluid which flows in blood vessels
- 3. clot is formed because this type of cells in the blood
- 5. giving out of air rich in carbon dioxide
- 8. slimy, green patches in ponds are formed by
- 10. The mode of nutrition in which organisms make food themselves from simple substances
- 11. Components of food that are necessary for our body
- 13. substances taste sour because they contain