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201. Hypothesis is
A. Intelligent guess
B. Reasoned explanation
C. Based on previous knowledge
D. All the above
Explanation:
202. Which one is not an adaptation?
A. Hibernation
B. Cell division
C. Phototropism
D. Geotropism
Explanation:
203. Maintenance of internal favourable conditions despite changes in external environment is
A. Enthalpy
B. Homoeostasis
C. Entrophy
D. Steady state
Explanation:
204. Given below are assertion and reason. Assertion. Death is regarded as the most regulatory process on earch. Reason. It avoids over-crowding caused by continuous reproduction
A. Both are true and the reason is correct explanation
B. Both are true but reason is not correct explanation
C. Assertion is true but reason is wrong
D. Both are wrong
Explanation:
205. Saline drip is given to patient suffering from cholera as
A. Na ⁺ ions help in retention of water in body tissues
B. NaCl is involved in supply of energy
C. NaCl furnishes most of cell fuel
D. Na ⁺ impairs nerve impulses involved in transmission of pain sensation
Explanation:
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