Ecology and Conservation
JUPEB Biology

In an ecosystem, organisms that manufacture their own food from inorganic substances using light energy are called

Only about 10% of the energy at one trophic level is passed on to the next. The remaining energy is mostly

Which of the following groups of organisms are decomposers?

The role an organism plays in its ecosystem, including what it eats, what eats it and how it interacts with other species, is called its

Which of the following is a density-dependent factor limiting population growth?

Nitrogen-fixing bacteria such as Rhizobium live in the root nodules of

The process in the carbon cycle that removes carbon dioxide from the atmosphere is

The vegetation zone found in the far north of Nigeria, bordering the Sahara, is the

Excessive growth of algae in a lake following the run-off of fertilisers from nearby farms, leading to oxygen depletion and death of fish, is called

Yankari and Cross River are examples of Nigerian

A pyramid of numbers is inverted (narrow at the base and wider above) when the food chain is

A relationship in which one organism benefits while the other is neither helped nor harmed, such as an epiphytic orchid growing on a tree trunk, is called