Biology WAEC

Water vapour is lost in plants during transpiration through?

A. stomata and lenticels B. xylem and stomata C. sclerenchyma and stomata D. parenchyma and lenticels E. guard cells and…

4 years ago

Different tissues in plants contribute to the support of the parts as a result of the following characteristics except?

A. malleability B. rigidity C. flexibility D. resilience E. hardness Correct Answer: Option A - malleability

4 years ago

The stems of young herbaceous plants are kept upright mainly by?

A. osmotic pressure B. turgor pressure C. transpiration pull D. suction pressure E. root pressure. Correct Answer: Option B -…

4 years ago

Which of the following statements is not correct about the functions of each group of mammalian vertebrae?

A. Cervical vertebrae support the neck B. Thoracic vertebrae articulate with the ribs C. Lumbar vertebrae provide attachment for abdominal…

4 years ago

The condition known as cretinism is caused by the deficiency of?

A. adrenalin B. vitamin A C. insulin D. thyroxin E. vitamin C Correct Answer: Option D - thyroxin

4 years ago

The increase in width of blood vessels in the mammalian skin at high temperatures is known as?

A. vasodilation B. sweating C. vasoconstriction D. shivering E. evaporation Correct Answer: Option A - vasodilation

4 years ago

The cup-shaped part of the Bowman’s capsule contains?

A. nephridium B. glomerulus C. loop of Henle D. nephron E. convoluted tubule Correct Answer: Option B - glomerulus

4 years ago

Which of the following takes place during the process of detoxication in the liver?

A. Poisonous substances in the body are converted into harmless substances B. Fats and oils are broken into finer particles…

4 years ago

The mechanism by which useful materials in the glomerular filtrate are taken back into the blood is known as?

A. filtration B. reabsorption C. haemolysis D. osmosis E. dialysis Correct Answer: Option B -  reabsorption 

4 years ago

Which of the following is not a function of the mammalian skeleton? It

A. gives the body its shape B. provides a framework on which internal organs are suspended C. protects soft and…

4 years ago