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.
Use the diagram below to answer this question.
The type of reproduction illustrated in IV is
sexual
conjugation
binary fission
budding
Correct answer is D
No explanation has been provided for this answer.
Use the diagram below to answer this question.
Which of the organisms is characterised by the possession of a chitinous exoskeleton?
l
ll
lll
lV
Correct answer is A
No explanation has been provided for this answer.
Use the diagram below to answer this question.
The optimum temperature for the growth of the organism is
25ºC
50ºC
75ºC
100ºC
Correct answer is B
No explanation has been provided for this answer.
Use the diagram below to answer this question.
The zone of physiological stress is represented by
l and ll
ll only
ll and lll
l and lll
Correct answer is D
Physiological stress can be defined as any external or internal condition that challenges the homeostasis of a cell or an organism.
It can be divided into three different aspects: environmental stress, intrinsic developmental stress, and aging.
That zone is option D
Use the diagram below to answer this question.
The content of the part labelled lll is usually?
neutral
alkaline
acidic
saline
Correct answer is C
The stomach acid's low pH level is largely attributable to one ingredient: hydrochloric acid (HCl).