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.
Epiphytes growing on the branches of trees provide an example of the relationship known as
parasitism
commensalism
saprophytism
holophytism
Correct answer is B
Commensalism is a type of symbiosis, specifically, a biological relationship in which one specie benefits from an interaction, while the host species is neither positively or negatively affected to any tangible degree.
In an agricultural ecosystem, the biotic component consist of
crops, pests, and beneficial insects
crops, temperature, and humidity
pests, beneficial insects, and water
crops, water, and soil
Correct answer is A
The living components of an ecosystem are called the biotic components, option A has all living components.
Kidney
Pancreas
Spleen
Liver
Correct answer is D
Deamination is used to break down amino acids for energy, and occurs primarily in the liver.
The theory of use and disuse of organs was promulgated by
Alfred Wallace
Charles Darwin
Jean Lamarck
Robert Hook
Correct answer is C
No explanation has been provided for this answer.
A collection of population of all living organisms that exist in a habitat is referred to as
niche
ecosystem
community
environment
Correct answer is C
No explanation has been provided for this answer.