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 groups carry out similar functions in living things?
Vertebral column, chitin, and guard cells
Sclerenchyma, cartilage, and chitin
Tendon, chitin, and neuron
Collenchyma, Intercellular spaces, and blood vessels
Blood vessels, lymph, and shell
Correct answer is B
No explanation has been provided for this answer.
Carbondioxide enters the stomata during photosynthesis through the process known as
osmosis
active transport
diffusion
inhalation
ventilation
Correct answer is C
No explanation has been provided for this answer.
One of the differences between plant and animal cells is that in plants
cells have less distinct outline, but animal cells have distinct outline
The cell wall is made of cellulose, but animal cell wall is made of chitin
large vacuoles are absent, but present in animals
plastids are absent, but present in animals
carbohydrates are stored as starch, but as glycogen in animals
Correct answer is E
No explanation has been provided for this answer.
Which of the following organisms is one-celled and free-living?
Volvox
Spirogyra
Rhizopus
Chlamydomonas
Hydra
Correct answer is D
No explanation has been provided for this answer.
Which of these could be regarded as an advantage of complexity in higher organisms?
there is no cellular differentiation
Cellular differentiation leads to loss of independence of the cells
Complexity stops at cellular differentiation only
Cellular differentiation leads to internal structural specialization
Correct answer is D
No explanation has been provided for this answer.