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.
The total amount of energy entering a food chain is that which is present in the
consumer
ecosystem
producer
decomposer
Correct answer is C
No explanation has been provided for this answer.
Use of ladybird insects to feed on aphids
introduction of bacterium to kill larvae of butterfly
Introduction of Tilapia fish in ponds to feed on mosquito larvae
Spraying insecticides to destroy cotton- stainers in a cotton-field
Correct answer is D
No explanation has been provided for this answer.
In any food chain, the first member must be a
carnivore
herbivore
zooplankton
autotroph
Correct answer is D
No explanation has been provided for this answer.
The importance of practising crop-rotation in agriculture is to
control soil erosion
maintain the fertility of the soil
improve the nutritional value of crops
ensure growth of cash crops
Correct answer is B
No explanation has been provided for this answer.
Which of the following processes removes water from the water cycle?
Condensation
Perspiration
Photosynthesis
Transpiration
Correct answer is D
No explanation has been provided for this answer.