1. Movement of organisms away from the sunlight is known as _______.   Photoperiodism   Autotrophism   Positive phototaxis   Negative phototaxis   Hint Half-n-half Clue   2. Plants manufacture their food by the process of   Chemosynthesis   Photosynthesis   Photokinesis   Symbiosis   Half-n-half Clue   3. When coal is burnt, _______ energy is converted into light and heat.   Atomic   Electric   Chemical   Half-n-half Clue   4. Man is an amphibian.   True   False   5. Which is not true regarding parasites ?   They derive their food from the organism on which they live.   They live on or inside the other organism.   They are always beneficial to the other organism.   Leech is a parasite.   Half-n-half Clue   6. Interaction between organisms of different species so as to get benefit from each other is known as   Etiolation   Saprophytism   Predation   Symbiosis   Half-n-half Clue   7. Nitrogen-fixing bacterium   Rhizobium   Salmonella   Lactobacillus   Clostridium   Half-n-half Clue