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.
Which of the following is a homostatic response in humans?
Withdrawing the hand from a hot object
Salivating when food is sighted
yawning owing to tiredness
shivering in a cold environment
Correct answer is D
No explanation has been provided for this answer.
Hydrostatic skeleton is the type of supporting system found in
mammals
reptiles
oligochaetes
arthropods
Correct answer is C
An annelid worm of the class Oligochaeta, such as an earthworm.
- The earthworm's body is also known as a hydrostatic skeleton, which is a flexible skeleton filled with fluid.
When bacteria swim from cold to warm regions this is known as
negative chemotaxis
positive thermotaxis
positive phototaxis
negative phototaxis
Correct answer is B
No explanation has been provided for this answer.
Excess water in plants is excreted as water vapour and droplets respectively through
respiration and guttation
transpiration and guttation
photosynthesis and guttation
guttation and condensation
Correct answer is B
No explanation has been provided for this answer.
The urinary tubules of the kidney function through
osmosis and diffusion
active transport and osmosis
ultrafiltration and selective reabsorption
active transport and cytoplasmic streaming
Correct answer is C
No explanation has been provided for this answer.