Which of the following is a measure for the control of bilharzia?

• A. Cutting low bushes around homes
• B. Application of molluscicides in water bodies
• C. Screening windows and doors with mosquito nets
• D. Application of herbicides in water bodies

The surface of an alveolus in a mammal is well supplied with tiny blood vessels known as

• A. arterioles
• B. venules
• C. arteries
• D. capillaries

Which of the following processes is not a function of the mammalian skin?

• A. Regulation of body temperature
• B. Reception of external stimuli
• C. Excretion
• D. Gaseous exchange

After a meal of yam has been digested, the highest concentration of glucose is to be found in the

• A. hepatic artery
• B. pulmonary vein
• C. hepatic portal vein
• D. posterior vena cava

The part of the brain responsible for the control the controls of voluntary movement and interpretation of sensation is the

• A. cerebrum
• B. cerebellum
• C. optic lobe
• D. medulla oblongata

The structure found only in the plant cells are

• A. cell membrane and cytoplasm
• B. chromatin and nucleolus
• C. cell wall and chloroplast
• D. cell membrane and lysosome

An example of homeostasis in living organisms is

• A. cooling effect resulting from evaporation of water from the body surface
• B. root hairs of a plant growing towards the source of light
• C. changing of the body colour of chameleon to match the colour of the foliage on which it is resting
• D. the release of phosphorus into the phloem of a plant growing in a phosphorus-deficient soil

Which base replaces thymine (T) in base sequence of messenger RNA (mRNA)?

• A) Adenine (A)
• B) guanine (G)
• C) Cytocine (C)
• D) Uracil (U)

The conservation of natural resources is enhanced by the following practices except

• A. controlling farm activities
• B. protecting endangered species
• C. poaching in game reserves
• D. establishing parks and gardens

The part of the mammalian kidney that stores urine is the

• A. capsule
• B. medulla
• C. pelvis
• D. bladder