the ability of a living thing to keep conditions inside its body constant
a state of balance
the control and coordination of all life functions
metabolism, responsiveness, movement, growth, differentiation, reproduction
The materials and conditions INSIDE of a cell or organism. Compare with "external conditions."
Response to a message
bodily changes as a result of certain emotions
e.g fear -> increase of hear rate
Refers to the conditions that surround a cell or an organism. These conditions are always different from conditions INSIDE the cell or organism.
Process of shortening or making smaller
harmful substances that can be deadly in high amounts
continuous movement but no overall change
A process in which a system is turned off by the condition it produces.
a change in an organism's surroundings that causes the organism to react
characteristics that help an organisim survive
a hormone in the path exerts negative feedback on the sequence
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