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.
able to carry out holozoic nutrition
able to carry out photosynthesis using carbon dioxide in the pond water
better adapted to life in darkness than to life in light
not overcrowded
Correct answer is A
No explanation has been provided for this answer.
Kingdom
class
family
species
Correct answer is D
Species could be likened to offspring or heredity of a lineage. Hence, they are alike.
Insects that goes through adult stage without becoming pupa are except ________
crickets
cockroach
grasshopper
bees
Correct answer is D
The first stage of incomplete metamorphosis is the egg. During this time, the insect will hatch into a form called a nymph.
The nymph is basically a small version of the adult insect.
How does an enzyme affect the rate of a reaction?
It lowers the activation energy of the reaction, increasing the reaction rate.
It raises the activation energy of the reaction, decreasing the reaction rate.
It lowers the activation energy of the reaction, decreasing the reaction rate.
It raises the activation energy of the reaction, increasing the reaction rate.
Correct answer is A
Enzymes lower the activation energy of a reaction, increasing the reaction rate.
In mosses the structure which performs the function of water absorption is the _________?
root hairs
rhizoids
capsule
hyphae
Correct answer is B
Mosses do not have a proper roots, but have threadlike rhizoids that anchor them to their substrate.
Rhizoids absorb water by capillary action, in which water moves up between threads of rhizoids and not through each of them as it does in roots.
hyphae are also important in the reproductive process in that they produce new spores while root hairs are important for the uptake of nutrients.