The distribution of plants in a rain forest is governed mainly by
Biology Past Questions
Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
Take a test
Custom CBT
Create and set up a CBT environment with your preferred subjects.
JAMB CBT Simulator
Practice JAMB CBT with real UTME past questions in CBT format.
WAEC CBT Practice 2026 Simulator
CB-WASSCE styled past question practice.
NECO CBT Practice 2026 Simulator
SSCE & GCE styled past question practice.
Past Questions
2,572 questionsThe hygrometer is used for measuring
A freshwater pond may contain
The physical space occupied by an organism together with its functional role in community can be described as
The greatest influence on a stable ecosystem in nature is exerted by
The highest percentage of energy in an ecosystem occurs at the level of the
The epiphytic habitat can best be described as
The factor that least affects food shortages in sub-saharan Africa is
Carbon (IV) oxide content of the atmosphere is least affected by
The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?
Salts and water are absorbed in the roots and transported to leaves by
Blood vessel usually pass through the structure labelled
The structure above represents a
When specimen X is mixed with few drops of iodine solution, the appearance of a blue-black colour confirms that X is
The part labelled II is the
The parts which function together to bring about hearing are labelled
The veins of the leaf are formed by the
The transportation of oxygen and carbon (IV) oxide in mammals is carried out by
When yeast respire anaerobically, it converts simple sugar to carbon (IV) oxide and
The enzyme invertase will hydrolyze sucrose to give