The Systems That Work Together to Acquire and Use Energy

question 42

Multiple Choice

The systems that work together to acquire and use energy are

• A) nervous and endocrine.
• B) skeletal and muscular.
• C) digestive, respiratory, and circulatory.
• D) reproductive and integumentary.
• E) urinary and immune.

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Definitions:

Cytokines

Chemicals secreted by T lymphocytes in response to an antigen. Cytokines increase T- and B-cell production, kill cells that have antigens, and stimulate red bone marrow to produce more white blood cells.

Major Histocompatibility Complex

A group of genes that play a critical role in the immune system's recognition of foreign molecules.

Activates T Cells

The process involved in stimulating T lymphocytes, a type of white blood cell, to respond to pathogens or infected cells.

Unique

Being the only one of its kind; unlike anything else.