Practice mode / Biology In condition of high temperature, following does not occur or occurs at low level? A Option A: Vasodilation B Option B: Activation of sweat glands C Option C: Thermogenesis D Option D: Evaporative cooling Correct answer C. Thermogenesis Show answer
Question 01 / Biology “lubb” sound is produced due to? A Option A: Opening of inlet valve B Option B: Closure of inlet valve C Option C: Opening of outlet valve D Option D: Closure of outlet valve Correct answer B. Closure of inlet valve Show answer Open question
Question 02 / Biology Ozone depletion occurs commonly due to? A Option A: Carbon dioxide B Option B: Chlorofluorocarbons C Option C: UV rays D Option D: Deforestation Correct answer B. Chlorofluorocarbons Show answer Open question
Question 03 / Biology Deoxygenated blood first enters in ____ part in fishes? A Option A: Sinus venosus B Option B: Right atrium C Option C: Left atrium D Option D: Conus arteriosus Correct answer A. Sinus venosus Show answer Open question
Question 04 / Biology According to cohesion-tension theory, tension is created by? A Option A: Hydrogen bonding B Option B: Transpiration C Option C: Adhesion D Option D: Root prerssure Correct answer B. Transpiration Show answer Open question
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