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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

Which of the following fishes excrete large volume of diluted urine?
A Bony Marine fishes
B Fresh water fishes
C Both depending upon the surrounding water
D None of these
Correct Answer: Fresh water fishes
The characteristic which enable animals to tolerate dehydration is called__________?
A Osmoconformation
B Osmoregulaton
C Anhydrobiosis
D Anhydrosis
Correct Answer: Anhydrobiosis
Which of the following structure in plant’s body is called excretophores?
A Stem
B Leaves
C Flowers
D Roots
Correct Answer: Leaves
Thermostat of human body is present in__________?
A Fore brain
B Hind Brain
C Thalamus
D Hypothalamus
Correct Answer: Hypothalamus
Production of pyrogens is a __________ phenomenon?
A Protective
B Destructive
C Constructive
D Aggressive
Correct Answer: Protective
Blubber a thick layer of fat is present in___________?
A Fresh water mammals
B Terrestrial mammals
C Marine Mammals
D Flying mammals
Correct Answer: Marine Mammals
Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called__________?
A Endotherms
B Ectotherms
C Heterotherms
D Homeotherms
Correct Answer: Heterotherms
On which of the following site the posterior pituitary hormone acts predominantly?
A Proximal convoluted tubule
B Descending limb of loop of Henle
C Ascending limb of loop of Henle
D Collecting tubules
Correct Answer: Collecting tubules
Each human kidney receives _______% of total cardiac out put?
A 10%
B 20%
C 30%
D 40%
Correct Answer: 20%
Excessive lactic acid is converted into __________ by liver?
A Glucose
B Fructose
C Sucrose
D Glycogen
Correct Answer: Glycogen
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