2023 - JAMB Biology Past Questions and Answers - page 8

The formation of complex caste systems is an example of an adaptation for survival in social insects. Social insects, such as ants and bees, often exhibit a division of labour with different castes (workers, soldiers, queen) specialized for specific tasks, contributing to the overall success and survival of the colony.

Migration to warmer climates, production of venom for defense, and hibernation during winter months are examples of different adaptations, but they are not specific to social insects with complex caste systems.

The natural place of an organism or community is known as a habitat. A habitat is the specific environment in which an organism or community of organisms lives and where it can find the necessary resources for survival.

The liver is not a part of the alimentary canal. The alimentary canal, also known as the digestive tract, consists of a continuous tube from the mouth to the anus, including the oesophagus, stomach, small intestine, and large intestine. The liver, although involved in digestion and producing bile, is an accessory organ and not part of the alimentary canal.

The skin performs the function of regulating body temperature to help maintain homeostasis in the human body. Through processes such as sweating and dilation or constriction of blood vessels, the skin helps regulate body temperature in response to external and internal factors.

Filtration of blood, production of hormones, and digestion of food are functions associated with other organs or systems, not primarily with the skin.