Biology

The purpose of treating poor soil with lime is to increase the quantity of?

A. nitrogen B. phosphorus C. carbohydrates D. sulphur Correct Answer: Option A A. nitrogen

6 years ago

The amount of starch in a germinating seed decreases because the starch is used up?

A. for respiration and building up of cells B. to build cellulose cell wall C. to develop meristematic tissues D.…

6 years ago

Older parts of plant roots do not normally absorb water because?

A. they lack xylem B. they have small surface area C. the phloem is dead D. they lack root hairs…

6 years ago

An inferior ovary of a flower is situated?

A. below the floral parts B. above the floral parts C. at the same level with all the floral parts…

6 years ago

The following substances pass into the blood of the foetus from the mother’s blood via the placenta except?

A. carbon dioxide B. glucose C. viruses D. antibodies Correct Answer: Option C C. viruses

6 years ago

The inability to maintain proper balance of the body in humans may be due to a defect in the?

A. cochlea B. Euastachian tube C. Semi-circular canals D. oval window Correct Answer: Option C C. Semi-circular canals

6 years ago

Which of the following conditions in flowering plants enhance self-pollination?

A. Cleistogamy B. Heterostyly C. Protandry D. Protogyny Correct Answer: Option A A. Cleistogamy

6 years ago

The legs of an accident victim with a fractured vertebral column and injured spinal cord could not be raised because?

A. impulses from receptors in the legs cannot travel to the brain B. impulses from the brain cannot travel to…

6 years ago

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 Correct Answer: Option D D.…

6 years ago

Which of the following statements about asexual reproduction is correct? It

A. always involves one parent but the offspring is genetically different from the parent. B. may involve two parents but…

6 years ago