Everyday Science MCQs

5120 MCQs  (Page 422 of 512)

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
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
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
Rose is an example of____________?
A. Hydrophytes
B. Mesophytes
C. Xerophytes
D. Halophytes
Thermostat of human body is present in__________?
A. Fore brain
B. Hind brain
C. Thalamus
D. Hypothalamus
Blubber a thick layer of fat is present in___________?
A. Fresh water mammals
B. Terrestrial mammals
C. Marine mammals
D. Flying mammals