Biology

Atmospheric nitrogen is converted to soil nitrogen for plant use by?

A. nitrification and combustion B. putrefaction and lightning C. lightning and nitrification D. combustion and putrefaction Correct Answer: Option C…

4 years ago

An ecological succession often leads to?

A. an increase in species diversity B. decrease in species diversity C. an unstable community D. the dispersal of species…

4 years ago

Serum differs from blood plasma because?

A. contains blood cells and fibrinogen B. contains soluble food and mineral salt C. lacks the blood protein and fibrinogen…

4 years ago

The chamber of the mammalian heart with the thickest wall is the?

A. right ventricles B. left auricle C. right auricle D. left ventricle Correct Answer: Option D - left ventricle

4 years ago

The greatest amount of energy will be obtained by the oxidation of 100kg of?

A. meat B. butter C. sugar D. biscuits Correct Answer: Option B - butter

4 years ago

For growth to occur in organisms, the rate of?

A. food storage must be low B. catabolism must exceed that of anabolism C. anabolism must exceed that of catabolism…

4 years ago

The inner ear contains two main organs, namely, the?

A. eardrum and eustachian tube B. cochlea and semi-circular canals C. oval window and ossicles D. pinna and cochlea Correct…

4 years ago

Short-sightedness can be corrected by lenses which are?

A. convex B. biconvex C. plano-convex D. concave Correct Answer: Option D - concave

4 years ago

Bacteria in the large intestine of man are important in the?

A. synthesis of vitamins K and B2 B. digestion of vegetables C. synthesis of vitamins A and D D. absorption…

4 years ago

The scapula and the ischium are part of the?

A. pectoral girdle B. pelvic girdle C. appendicular skeleton D. hind limb Correct Answer: Option C - appendicular skeleton

4 years ago