Biology WAEC

Which of the following is a means of measuring primary production?

A. Rate of reproduction of animals B. Life span of an organism C. Number of predators in an environment D.…

4 years ago

Carbon is added to the atmosphere by the following processes except?

A. respiration B. burning C. photosynthesis D. volcanic eruption Correct Answer: Option C - photosynthesis

4 years ago

A known weight of soil sample was oven-dried to obtain a constant weight. The loss in weight was due to?

loss of A. organic matter only B. water only C. water and organic matter D. inorganic matter and water Correct…

4 years ago

Soil factors in an ecosystem are referred to as?

A. topographic B. climatic C. biotic D. edaphic Correct Answer: Option D - edaphic

4 years ago

The secchi disc is used to measure?

A. speed of flow of water B. specific gravity of water C. turbidity of water D. depth of water Correct…

4 years ago

Desert plants are usually called?

A. hydrophytes B. mesophytes C. xerophytes D. sporophytes Correct Answer: Option C - xerophytes

4 years ago

Which of the following is not a biotic factor?

A. Parasites B. Predators C. Grazers D. Pressure Correct Answer: Option D - Pressure

4 years ago

Which of the following organisms can be found in fresh water habitat?

A. Sargassum and dog fish B. Red mangrove and pond skater C. Sargassum and red mangrove D. Spirogyra and pond…

4 years ago

Which of the following statements is true?

A. Ptyalin acts on proteins to give amino acid B. Lactase acts on maltose to give amino acid C. Pepsin…

4 years ago

The dentition of a herbivore is distinct from that of other animals due to the presence of?

A. diastema B. cusps on molar teeth C. canines D. ridges on molar teeth Correct Answer: Option A - diastema

4 years ago