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.
One of the functions of water in seed germination is to?
dilute the embryo
make the soil wet and soft
activate the enzymes
promote aerobic respiration
Correct answer is C
The water activates special proteins, called enzymes, that begin the process of seed growth.
The process by which the amount of water and solutes in the blood is controlled is known as
hemolysis
diffusion
turgidity
osmoregulation
Correct answer is D
No explanation has been provided for this answer.
Diagram J is a protease while diagrams K, L, M, and N are food substances. Study them and answer this question.
Protease J would react with the particular illustrated substance because enzymes?
K
L
M
N
Correct answer is B
No explanation has been provided for this answer.
The beak structure of the organism is best adapted for?
pecking grass
killing and picking fish
pecking wood
sucking nectar
Correct answer is D
The beaks of nectar sucking birds are long slender and pointed.
This helps in sucking nectar and also feeding insects and food to the young ones.
Birds like Hummingbirds have this kind of beaks.
chlamydomonas
algae
volvox
euglena
Correct answer is C
Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells.
Its plant body is coenobium and consists of large number of biflagellate, pear-shaped cells.