Some of the diseases caused by bacteria are

• A. tuberculosis, gonorrhoea and syphilis
• B. tuberculosis, gonorrhoea and AIDS
• C. Poliomyelitis, syphilis and gonorrhoea
• D. AIDS, cholera and tuberculosis

One common characteristic of fungi, algae, mosses and ferns is that they

• A. show alternation of generations
• B. reproduce sexually by conjugation
• C. produce spores that are dispersed
• D. possess chlorophyll in their tissues

Environmental pollutants which can work through the media of water, soil and air include

• A. carbon monoxide
• B. noise
• C. sulphur(IV)oxide
• D. smoke

A man with blood group a is married to a woman with blood group A. Which of the following group combinations is possible if the family has three children?

• A. B, A, AB
• B. O, A, B
• C. B, AB, AB
• D. A, O, A

Secondary thickening in dicotyledonous stem is controlled by the

• A. xylem
• B. phloem
• C. cambium
• D. pericycle

Human height is an example of a feature which depends on both

• A. genotype and phenotype
• B. genetic and environmental factors
• C. mother's genotype and environmental factor
• D. phenotipic and environmental factors

Which of the following is transmitted through mosquito bite?

• A. Filariasis
• B. Typhus
• C. Plague
• D. Schistosomiasis

The DNA molecule is a chain of repeating

• A. nucleosides
• B. nitrogenous bases
• C. sugar phosphates
• D. nucleotides

a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the

• A. the primary consumer has more energy than the primary poducer
• B. secondary consumer takes up all the energy contents of the primary consumer
• C. energy is shared equally between the three groups of organism
• D. secondary consumer gets only a small portion of the energy contained in the primary producer

Diamond Ringo business was started when Mr. Diamond brought in a cheque of N500,000, which was paid into the bank account. Which of the following entries properly records the transaction?

• A. Cash account was credited with N500,000 and capital account was debited with N500,000
• B. Bank account was debited with N500,000 and capital account was credited with N500,000
• C. Bank account was accredited with N500,000
• D. Mr. diamond acount was debited with N500,000 and the cheque account was credited with N500,000