Top 1000+ Solved Biology (GK) MCQ Questions Answer

From 556 to 570 of 1657

Q. Which one of the following glands is responsible for secretion of sex hormones?

a. Adrenal gland

b. Thyroid gland

c. Pituitary gland

d. Sebaceous gland

  • c. Pituitary gland

Q. In cauliflower plant the useful part is :

a. Underground stem

b. Root

c. Young inflorescence

d. Leaves

  • c. Young inflorescence

Q. Jaws are absent in –

a. Birds

b. Fishes

c. Protochordates

d. Reptiles

  • c. Protochordates

Q. Which enzyme is present in all members of the animal kingdom except Protozoa?

a. Insulin

b. Pepsin

c. Renin

d. Amylase

  • d. Amylase

Q. Which of the following is a true fish?

a. Silver fish

b. Star fish

c. Dog fish

d. Shell fish

  • c. Dog fish

Q. Which of the following micro- organisms is used in milk curdli –

a. Acetobacter

b. Leticonost

c. Bacillus

d. Lactobacillus

  • d. Lactobacillus

Q. The ambient air quaility standard (24 hours' average) for lead in industrial area is

a. 0.65 pg/m3

b. 0/5 pg/m3

c. 1.0 pg/m3

d. 1.5 pg/m3

  • d. 1.5 pg/m3

Q. Sams crane is the state bird of –

a. Rajasthan

b. Uttar Pradesh

c. Madhya Pradesh

d. West Bengal

  • b. Uttar Pradesh

Q. The animal who can consume more salt among the following is –

a. Sheep

b. Camel

c. Donkey

d. Dog

  • b. Camel

Q. The release of which of the following into ponds and wells helps in controlling mosquitoes?

a. Snaii

b. Crab

c. Dogfish

d. Gambusia fish

  • d. Gambusia fish

Q. The ambient air is stable when the ambient lapse rate is –

a. Neutrally stable

b. Hyper-adiabatic

c. Sub-adiabatic

d. Super-adiabatic

  • c. Sub-adiabatic
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