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.
The part labelled I in the diagram is the
cytoplasm
chloroplast
chlorophyll
nucleus
cell wall
Correct answer is B
No explanation has been provided for this answer.
The structure represented in the diagram above is
a colony
a tissue
a filament
a pseudopodium
an organ
Correct answer is C
No explanation has been provided for this answer.
The part labelled I in the diagram is the
cytoplasm
pollen nucleus
pollen tube
endosperm
intine
Correct answer is D
No explanation has been provided for this answer.
The diagram above represents a?
germinating seed
radicle
shoot showing negative phototropism
zygote
germinating pollen grain
Correct answer is E
the germination of pollen grains begins by absorption of water and nutrients and the pollen grain produces a tiny pollen tube through the style to the ovary.
The tube cell enlarges and comes out of the pollen grain through one of the germ pores to form a pollen tube.
The tube nucleus descends to the tip of the pollen tube.
What is the importance of the part labelled II to the seedling? It
protects the foliage leaves
grows into the first foliage leaves
later develops into the fruit
provides the seedling with food
serves as the water reservoir for the seedling
Correct answer is D
No explanation has been provided for this answer.