What is the branch of science that studies body functions
200
define responsiveness
What is the reaction to a change taking place inside or outside of the body
200
define food
various chemical substances used to supply energy and raw materials
200
explain the purpose of the endocrine system
to control metabolic activities of body structures and consists of pituitary gland, thyroid gland, parathyroid gland, adrenal glands, pancreas, ovaries, testes, pineal gland, and thymus
300
define tissue
What is a group of similar cells that performs a specialized function
300
define growth
What is the increase of body size without change in shape
300
define oxygen
it's used for the respitory process
300
explain the purpose of the lymphatic system
to return tissue fluid to the blood, carry ceratin absorbed food molecules, and to defend the body againt infection and consists of lymphatic vessels, lymph nodes, thymus, and spleen
400
define subatomic particles
What are the small parts of an atom
400
define reproduction
What is the production of a new organism and new cells
400
define heat
a form of energy used to help regulate the rates of metabolic reactions
400
name all the organs that make up the digestive system
mouth, tongue, teeth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small and large intestines
500
define homeostasis
What is the state of equilibrium in which the internal environment of the body remains in a normal range
500
define respiration
What is it called when you obtain oxygen, removing carbon dioxide, and releasing energy from food
500
define pressure
a force used for breathing and circulating blood
500
explain the purpose of the muscular nervous system
alloows movements, maintains posture, and produces body heat