Biology WAEC

In natural selection, Darwin proposed that evolution occurred because of the following conditions except?

A. food and other needs are abundant B. there is a fierce competition among the offsprings C. That the weaker…

4 years ago

Which of the following is not a behavioural adaptation used by social animals?

A. Cryptic B. Mimicry C. Flash D. Season Correct Answer: Option D D. Season

4 years ago

Sickle-cell anaemia has persisted in the human race due to?

A. lack of proper medical care for sicklers B. carriers being more resistant to malaria C. mosquito vectors D. wildlife…

4 years ago

In Mendel’s experiments, it was discovered that the skin of an African can be attributed to?

A. a blending of black and white genes B. recombination of genes C. loss of the epidermis D. mutation in…

4 years ago

The organic molecule (s) present in the nucleus is/are?

A. DNA B. Protein, RNA and DNA C. RNA and ATP D. RNA Correct Answer: Option B B. Protein, RNA…

4 years ago

Which of following pairs of scientists discovered the Rhesus factor in human blood?

A. Hooke and Lavine B. Darwin and Landsteiner C. Landsteiner and Lavine D. Hooke and Darwin Correct Answer: Option C…

4 years ago

Which of the following is an example of discontinuous variation?

A. the range in height of a pea plant from 30cm to 50cm B. Offspring, including the two male cats…

4 years ago

Forest conservation includes the following except?

A. prevention of bush-fires B. extensive felling of forest trees C. replacing of harvested trees by planting seedlings D. selective…

4 years ago

Legumes incorporate nitrogen gas into their proteins because?

A. of the presence of Azotobacter in their roots B. they possess root nodules containing Rhizobium C. they have a…

4 years ago

Renewable resources are formed by?

A. animals that reproduce sexually B. organisms confined to forest reserves C. organisms that are constantly regenerating themselves D. plants…

4 years ago