Biology Mcqs

Terrestrial animals like kangaroo rat survive even without drinking water since__________?

(A) They don’t require water for their metabolic process

(B) They can retain excessive water in their body during raining season.

(C) They feed on carbohydrate rich seeds which can provide them with metabolic water

(D) They are anhydrobiotic organisms

Submitted By: Ali Uppal


Marine fish can keep their internal environment hypertonic with respect to the surrounding salty water by retaining.

(A) Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment

(B) Trimethyl alanine

(C) Ammonia

(D) Trimethylamine oxide

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Rose is an example of____________?

(A) Hydrophytes

(B) Mesophytes

(C) Xerophytes

(D) Halophytes

Submitted By: Ali Uppal


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

Submitted By: Ali Uppal


The characteristic which enable animals to tolerate dehydration is called__________?

(A) Osmoconformation

(B) Osmoregulaton

(C) Anhydrobiosis

(D) Anhydrosis

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Thermostat of human body is present in__________?

(A) Fore brain

(B) Hind Brain

(C) Thalamus

(D) Hypothalamus

Submitted By: Ali Uppal


Production of pyrogens is a __________ phenomenon?

(A) Protective

(B) Destructive

(C) Constructive

(D) Aggressive

Submitted By: Ali Uppal


Blubber a thick layer of fat is present in___________?

(A) Fresh water mammals

(B) Terrestrial mammals

(C) Marine Mammals

(D) Flying mammals

Submitted By: Ali Uppal