Biology

A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is?

A. isotonic to sea water B. hypotonic to sea water C. hypertonic to sea water D. impervious to sea water…

5 years ago

The association between bacteria residing in the caecum and the ruminant is?

A. parasitism B. predation C. saprophytism D. mutualism Correct Answer: Option D - mutualism

5 years ago

The most important ecological factor in a terrestrial environment is?

A. rainfall B. humidity C. wind D. soil Correct Answer: Option D - soil

5 years ago

In a bean seed, absorption of water at the beginning of germination is through the?

A. hilium B. micropyle C. testa D. plumule Correct Answer: Option B - micropyle

5 years ago

The reproductive system of a male mammal is made up of?

A. claspers, prostrate, gland, sperm duct and vas deferens B. testis, prostrate gland, sperm duct and vas deferens C. oviduct,…

5 years ago

The axial skeleton is found in the?

A. skull, ribs, vertebral column and breast bone B. skull, sternum, vertebral column and ribs C. breastbone, clavicle, ribs and…

5 years ago

In insects, the structures that perform the same function as the kidney in man is the?

A. nephridium B. flame cell C. Malpighian tubule D. trachea Correct Answer: Option C - Malpighian tubule

5 years ago

The enzymes of the glycolytic pathway are located in the?

A. mitochondria B. gastric juice C. plasma D. cytoplasm Correct Answer: Option A - mitochondria

5 years ago

Which of the following describes the sequence of blood flow from the heart to a tissue?

A. Heart→ artery→ arteriole →tissue B. heart→ vein →venule →tissue C. heart →venule→ vein →tissue D. heart →arteriole →artery →tissue…

5 years ago

The part of alimentary system of a bird where food is ground into small particles is the?

A. cloaca B. stomach C. crop D. gizzard Correct Answer: Option D - gizzard

5 years ago