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.
pH
oxygen
light
temperature
Correct answer is C
No explanation has been provided for this answer.
The stomata of some plants are sunken and protected by hairs. These are features of
mesophytes
epiphytes
hydrophytes
xerophytes
Correct answer is D
No explanation has been provided for this answer.
The main ecological problem facing intertidal organisms is
desiccation
floatation
salinity
humidity
Correct answer is A
Desiccation refers to the drying out of a living organism, such as when aquatic animals are taken out of water. The intertidal zones lay exposed twice daily due to tidal movements.
In a typical freshwater habitat, the edge of the stream or pond constitutes the
tidal zone
intertidal zone
littoral zone
euphotic zone
Correct answer is C
No explanation has been provided for this answer.
Which of the following associations is an example of mutualism
hydra viridis and zoochlorellae
human and lice
shark and remora fish
bread and rhizopus stolonifer
Correct answer is A
Mutualism describes a type of mutually beneficial relationship between organisms of different species. It is a symbiotic relationship in which two different species interact with and in some cases, totally rely on one another for survival. Zoochlorellae often colour their hosts green while the feeding of the hydra aids in the growth of the algae.