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Questions in biology

📝 Answered - An animal with an abnormally large heart is diagnosed with carditis. A. True B. False

📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

📝 Answered - A positive control is a sample known to give positive results for the given test. What is the purpose of a positive control? A. Always give negative results B. Give positive results even when the procedure is not optimized C. Verify that the negative results are valid D. Validate false-positive results

📝 Answered - Hair cells in the inner ear convert motion into nerve impulses that travel via the ______ nerve to the brain. A. optic B. radial C. cochlear D. occipital

📝 Answered - What would most likely happen to the carbon cycle if there were no more plants on Earth? A. Animals would consume more carbon. B. More carbon would be released from fossil fuels. C. Carbon would build up in the atmosphere. D. Animals would perform more photosynthesis.

📝 Answered - 8) Tomato is a: (a) Herb (b) Shrub (c) Tree (d) None of these 9) What adaptation helps camels survive in cold deserts? (a) Long legs (b) Thin fur (c) Short legs and two humps (d) Broad leaves 10) Which of these have tap roots? (a) Maize (b) Wheat (c) Pea (d) Rice 11) What type of root is in grass? (a) Fibrous root (b) Tap root (c) Both a and b (d) Lateral root 12) Which of the following is an example of terrestrial habitat? (a) Aquarium (b) Forest (c) Mountains (d) Grassland 13) Which of the following is an example of amphibians? (a) Snail (b) Tortoise (c) Frogs (d) All of these 14) Name the parts of plants which help in storage of food: (a) Cotyledon (b) Root (c) Stem (d) Leaves 15) The plants which take support on neighbouring plants and climb up are called: (a) Shrubs (b) Climbers (c) Herbs (d) Creepers

📝 Answered - Which of the following is a function of the urinary system? A. Removing wastes B. Regulating fluid volume C. Helping maintain electrolyte levels D. All of the above

📝 Answered - The term atrioventricular refers to the atria and ventricles of the heart. A. True B. False

📝 Answered - You are adrift in the Atlantic Ocean, and, being thirsty, drink the surrounding seawater. As a result, which of the following occurs? A. Your cells become turgid B. Your cells lyse from excessive water intake C. You dehydrate D. You quench your thirst

📝 Answered - When the brain rewires connections in response to a need for change, it is exhibiting which characteristic? Multiple Choice: A) Complexity B) Integration C) Adaptability D) Electrochemical transmission