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.
trap all the sunlight
trap a small percent of the sun energy
are primary producers
are eaten by primary consumers
contains chlorophyll
Correct answer is A
No explanation has been provided for this answer.
grasses
grasshopper
lizards
snakes
hawks
Correct answer is E
No explanation has been provided for this answer.
The major function of contractile vacuole in amoeba is?
to secrete enzyme to digest food particles
to store excess food materials
to excrete nitrogenous waste
to absorb water from the surrounding
to collect and expel water in the cytoplasm
Correct answer is E
- The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.
- This implies that the contractile vacuole, as its name suggests, expels water out of the cell by contracting.
The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as
achene
samara
caryopsis
legume
drupe
Correct answer is C
No explanation has been provided for this answer.
Identical twins are produced under one of the following conditions
Two oval fertilized at the same time by two sperm
one ovum ferilized divides to give two embryos
one ovum fertilized, twins formed shortly before birth
Two ova fertilized by one sperm
one ovum fertilized by two sperm
Correct answer is B
No explanation has been provided for this answer.