In electromagnetic radiation, which of the following has greater wave length than visible light?1. ultraviolet rays2. infra red rays3. cosmic rays4. x-rays
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The process in which energy stored in carbohydrates released is known as :1. photosynthesis2. respiration3. reproduction4. excretion
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Autotrophic organisms1. Depend on other organisms for food2. Hunt for the food3. Synthesize their own food4. Can not synthesize their food
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Photosynthetic activity in green plants has to be tested :1. early in the morning2. after keeping the plant in dark for 5-6 hours3. after exposing the plant to light for 2-3 hours4. in a day any time
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Iodine can be used to test the presence of :1. glucose2. light3. starch4. carbon dioxide
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Which of the following is released during photosynthesis?1. oxygen2. carbon dioxide3. light4. energy
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In cockroach, the muscles that help in sending the blood into heart :1. tracheal2. cardiac3. alary4. bronchial
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The ventral blood vessel in earthworm is :1. above alimentary canal2. above the heart3. below the lungs4. below the alimentary canal
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The blood vessel that distributes blood in earth worm is :1. gills2. dorsal blood vessel3. ventral blood vessel4. lungs