How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
Which of the following cell organelles is the site for the production of ATP?
Lysosome
Nucleus
Mitochondrion
Ribosome
Correct answer is C
The production of ATP happens in the mitochondrion, which likewise exists in both animals and plants.
Which of the following organisms cannot exist freely on its own?
Chlamydomonas
Amoeba
Paramecium
Plasmodium
Correct answer is D
The plasmodium is a single-celled parasite that multiplies in red blood cells of humans as well as in the mosquito intestine. Hence, it doesn't live freely.
The structural similarities in Paramecium and Euglena are in the
shape of locomotory organs
blunt anterior and pointed posterior
presence of micro and mega nuclei in both
presence of anterior and posterior contractile vacuoles
Correct answer is B
No explanation has been provided for this answer.
Which of the following groups of animals do not possess a nervous system?
Porifera
Cnidaria
Platyheminthes
Nematoda
Correct answer is A
Porifera are 'pore bearing' organisms, commonly known as sponges, are the only multicellular organisms without a nervous system. Their response to stimuli is by a contraction in their bodies.
Which of the following is not a social insect?
termite
housefly
honeybee
ant
Correct answer is B
Social insects are characterized by Group integration (blending the new members into the already existing social structure), Division of labour, and Overlap of generations (having several breeding seasons, hence having multiple generations present at a time).