Biology Mcqs

Nodules on roots of leguminous plants have __________ bacteria?

(A) Anaerobic

(B) Nitrogen fixing

(C) Nitrifying

(D) Ammonifying

Submitted By: Ali Uppal


Puccinia commonly destroys______________?

(A) Corn

(B) Tomato

(C) Dodder

(D) Wheat

Submitted By: Ali Uppal


One of the commonest cause of food poisoning are the toxins produced by__________?

(A) Azobacter

(B) Nitrosomonas

(C) Campylobacter

(D) Nitrobacter

Submitted By: Ali Uppal


The liquid that escapes during defrosting frozen meat contains _____ bacteria?

(A) Campylobacter

(B) Nitrobacter

(C) Azobacter

(D) Salmonella

Submitted By: Ali Uppal


Stunted growth of roots is due to the deficiency of____________in plants?

(A) Potassium

(B) Magnesium

(C) Phosphorus

(D) Iron.

Submitted By: Ali Uppal


Strong chlorosis is due to the deficiency of _____________ in plants?

(A) Magnesium

(B) Nitrogen

(C) Potassium

(D) Phosphorus

Submitted By: Ali Uppal


In planaria, numerous small branches which end blindly are called as__________?

(A) Digestive tract

(B) Intestinal caeca

(C) Hepatic caeca

(D) Both B & C

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Submitted By: Ali Uppal


Submitted By: Ali Uppal