The independent variable is the
The dependent variable is the
An explanation for a natural phenomenon.
ID: Controlled Experiment
An experiment in which only one variable is tested.
Control of an animal's body temperature.
The ability of an organism to maintain constant body temperature, fluid balance, and chemistry.
The biochemical reactions of a cell.
ID: Counter-current exchange
Arrangement in which two adjacent currents flow opposite directions and exchange materials or heat.
Basic unit of life.
A group of joined atoms.
Also called autotrophs, extract energy from the nonliving environment.
Also called heterotrophs, obtain energy by eating nutrients that make up other organisms.
An element not being tested to provide a basis of comparison.
A chemical in which other substances dissolve.
Dissolve in the solvent.
Consists of one or more solutes dissolved in a liquid solvent.
Substances that dissolve in water.
Substances that do not dissolve in water.
ID: Cellular respiraton
The set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into ATP, and then release waste products.