The following are ways of caring for the mammalian skin EXCEPT

A. eating balanced diet

B. exposing the skin to adequate sunlight

C. using skin toning creams

D. using moisturising creams to prevent drying

E. washing the skin with clean water and soap

Which of these is NOT a structural adaptation of desert plants for water conservation?

A. Broad leaves with many stomata

B. Leaves reduced into spines

C. Scale leaves

D. Stems and leaves with thick cuticle

E. Sunken stomata

Poor growth and yellowing of leaves in plants is due to deficiency of

A. boron

B. calcium

C. copper

D. iron

E. phosphorus

Which of these nitrogenous bases is NOT a part of RNA?

A. Adenine

B. Cytosine

C. Guanine

D. Thymine

E. Uracil

Which of the following processes removes carbon (IV) oxide from the atmosphere?

A. Combustion

B. Excretion

C. Photosynthesis

D. Respiration

E. Transpiration

The practice of growing more than one type of crop on the same plot of land is called

A. continuous cropping

B. crop rotation

C. mixed cropping

D. mixed farming

E. subsistence farming

Which of the following is NOT an evidence of organic evolution?

A. Comparative anatomy

B. Embryology

C. Fossil records

D. Homologous features

E. Spontaneous generation.

Blood carrying digested food from the small intestine flows into the liver via the

A. hepatic portal vein

B. hepatic vein

C. hepatic artery

D. mesenteric artery

E. renal vein

The gland that secretes the hormone glucagon is ... gland

A. adrenal

B. endocrine

C. pancreas

D. pituitary

E. thyroid

Which of these is NOT an example of heterotrophic mode of nutrition?

A. Holozoic

B. Holophytic

C. Parasitic

D. Saprophytic

E. Symbiotic