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.
A characteristic feature of plant parasites is the
possession of holdfast
possession of rhizoids
development of hanging roots
development of haustoria
Correct answer is D
A parasitic plant is one that derives some or all of its nutritional requirements from another living plant. All parasitic plants have modified roots, named haustoria (singular: haustorium), which penetrate the host plants, connecting them to the conductive system - either the xylem, the phloem, or both. This provides them with the ability to extract water and nutrient from the hosts. About 4,100 species in approximately 19 families of flowering plants are known.
mercurous nitrate
copper sulphate
sodium carbonate
silver nitrate
Correct answer is B
No explanation has been provided for this answer.
A meal consisting of yam and a lot of vegetables is not balanced because it does not contain
carbohydrates
proteins
vitamins
minerals
Correct answer is B
No explanation has been provided for this answer.
Why poor soil is treated with lime is to increase the quantity of
nitrogen
phosphorus
carbohydrates
sulphur
Correct answer is A
No explanation has been provided for this answer.
The amount of starch in a germinating seed decreases because the starch is used up
for respiration and to build cells
to build a cellulose cell wall
to develop meristematic tissues
to produce enzymes
Correct answer is A
No explanation has been provided for this answer.