1. Saprophytes derive their food from dead organisms.   False   True   2. Which is not true regarding parasites ?   Leech is a parasite.   They live on or inside the other organism.   They are always beneficial to the other organism.   They derive their food from the organism on which they live.   Hint Half-n-half Clue   3. What is the name given to the green pigment in plants ?   Tendrils   Starch   Stomata   Chlorophyll   Half-n-half Clue   4. Very high concentration of carbon dioxide accelerates plant growth.   True   False   5. Belladona has medicinal properties.   True   False   6. Which is not a 'biotic part' of the ecosystem ?   Water   Plants   Bacteria   Insects   Half-n-half Clue   7. Autotrophic component of the ecosystem   All of these   Decomposers   Consumers   Producers   Half-n-half Clue