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.
water
organic matter
water and organic matter
water and inorganic matter
Correct answer is C
No explanation has been provided for this answer.
The falling off of leaves of deciduous trees is helpful to the plant because it
reduces the rate of transpiration
enables the plant to conveniently eliminate its excretory products
enables the plant to bear more fruits
ensurereduces the rate of transpirations that the limited mineral salts get to only growing regions
Correct answer is A
No explanation has been provided for this answer.
A xerophyte conserves water by possessing the following features except
thick cuticle
sunken stomata
broad leaves
fleshy stem
Correct answer is C
No explanation has been provided for this answer.
of the relatively constant daylight
there are more plants per square feet
of abundance of water
of constant cool temperature
Correct answer is C
No explanation has been provided for this answer.
A red blood cell haemolyses when placed in a hypotonic solution because
it contains haemoglobin
the cytoplasm is less dense
the cell lacks a wall
its pigment has a high affinity for water
Correct answer is B
No explanation has been provided for this answer.