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.
salt solution is more concentrated than the cell sap of the yam
cell sap of the yam is more concentrated than the salt - solution
salt solution has the same concentration as the cell sap of the yam
the yam lost some water molecules to the salt solution
Correct answer is B
No explanation has been provided for this answer.
The following are abiotic components of an ecosystem except
temperature
oxygen
bacteria
soil
Correct answer is C
No explanation has been provided for this answer.
Carbohydrates are stored in the animal cell in the form of
starch
glycogen
plastid
maltose
Correct answer is B
No explanation has been provided for this answer.
Which of the following structures produces the greatest variety of digestive enzymes?
Salivary glands
Pancreas
Stomach
Colon
Correct answer is B
No explanation has been provided for this answer.
The major function of the cell membrane is that it
delimits the cytoplasm
synthesizes protein
breaks down worn-out organelles
is the site for photosynthesis
Correct answer is A
No explanation has been provided for this answer.