Because Polar Bears Are White,they Are Difficult to See as They

question 10

True/False

Because polar bears are white,they are difficult to see as they stalk seals; their white fur is an example of an adaptation.

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Definitions:

Cytokines

Small proteins released by cells, especially those in the immune system, that have an effect on the interactions and communications between cells.

Immune System Cells

Components of the immune system, such as white blood cells, that work to protect the body from infectious diseases and foreign invaders.

Nervous System

The network of nerve cells and fibers that transmits nerve impulses between parts of the body, controlling and coordinating bodily functions.

Psychoneuroimmunology

An interdisciplinary field studying the interaction between psychological processes, the nervous system, and the immune system.