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.
sunlight
chlorophyll
carbon dioxide
atmosphere
water
Correct answer is E
The oxygen given of by plants is from WATER which is split during photolysis(splitting of water by sunlight).
A plant which grows on another plant without apparent harm to the host plant is called
a parasite
an epiphyte
a saprophyte
a predator
a hermaphrodite
Correct answer is B
Epiphytes, which differ from parasites in the sense that epiphytes grow on other plants for physical support and do not necessarily negatively affect the host. Hence, epiphytes show no apparent harm to the host plant.
tetanus
influenza
cholera
typhoid
Correct answer is C
Vibrio cholerae (also Kommabacillus) is a gram negative comma-shaped bacterium with a polar flagellum that causes cholera in humans.
Ptyalin is an enzyme produced in the
salivary glands
pituitary glands
thyroid glands
pancreas
Correct answer is A
No explanation has been provided for this answer.
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
By cyanobacteria
By electrical discharges in the atmosphere
By industrially synthesised fertilizer
By denitrification
Correct answer is D
No explanation has been provided for this answer.