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B30S Unit 1 Vocab Quiz

Across
The maintenance of a constant internal temperature of an organism independent of the temperature of the environment.
Movement with an energetic cost. Movement occurs against gradients (low to high).
A solution that has a higher osmotic pressure relative to another solution. Fluids rush OUT, cell gets smaller.
A membrane that allows some things through, but keeps others out. The cell membrane is an example of this.
Receive a stimulus from the source and transmit signals about what they receive to the nervous system.
A solution that has a lower osmotic pressure relative to another solution. Fluids rush IN, cell gets bigger.
Receives signals from a receptor in the body, sends signals to an effector to elicit a response in the body. In humans, this is usually the brain.
Down
Any change or deviation from the normal range of function is opposed or resisted.
Two solutions having the same osmotic pressure. Cell size doesn't change.
Passive movement of molecules from a region of high concentration to a region of low concentration.
Movement with no energetic cost. Movement occurs down gradients (high to low).
The maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt concentrations
Maintenance of relatively stable internal conditions even though external conditions constantly change.
Muscles/glands that receive signals from the nervous system and form a response to the stimulus.
To make or become less concentrated.