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.
At the end of photosynthesis, the green leaf is tested for starch and not glucose because
the glucose is used up immediately to provide energy for the needs of the leaf
the glucose formed is immediately converted to starch
starch is stored only in leaves
there are no chemicals for glucose test in leaves
it is easy to test for starch
Correct answer is B
No explanation has been provided for this answer.
Which of the following organisms has a symbiotic relationship with green algae?
Amoeba
Paramecium
Hydra
Euglena
Chlamydomonas
Correct answer is C
No explanation has been provided for this answer.
The series of changes that occur in a seed by which the embryo develops into a seedling is known as
fertilization
gametogenesis
pollination
germination
regeneration
Correct answer is D
No explanation has been provided for this answer.
Which of the following is an advantage of dispersal of fruits and seeds? It allows
fair distribution of source of food for animals
growth in close association with parent plant
even distribution of plants and reduction of intraspecific competition
keen competition for food
the seeds to evolve new species
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is not correct?
Food shortage may be caused by pestilence, rinderpest, and neglected farming
Shortage of food may lead to competition, emigration, death, and decline in the reproduction rate
Over-crowding may lead to food scarcity
Dispersal of seeds and fruits prevents overcrowding
Territorial defence encourages food scarcity in a habitat
Correct answer is E
No explanation has been provided for this answer.