2020 - JAMB Biology Past Questions and Answers - page 3

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. Wikipedia

When our eyes see distant objects then the ciliary muscles relax and the focal length is maximum in this position.

Competition is an interaction between organisms or species in which both the organisms or species are harmed. 

Phytoplanktons are microscopic marine organisms at the bottom of the food chain. Most phytoplanktons are buoyant and float in the upper part of the ocean.

Phytoplanktons are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems.

Anabolism is the set of metabolic pathways that construct molecules from smaller units. These reactions require energy, known also as an endergonic process. Anabolism is the building-up aspect of metabolism, whereas catabolism is the breaking-down aspect.

A man with many brothers is more likely to have sons, while a man with many sisters is more likely to have daughters.

Continuous variation is the combined effect of many genes (known as polygenic inheritance) and is often significantly affected by environmental influences.