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Marine Biology module 2 vocab

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Metabolism
The process by which a living organism takes energy from its surroundings and uses it to sustain itself, develop, and grow
Photosynthesis
The process by which an organism uses the energy from the sun the produce its own food
Autotrophs
Organisms that are able to produce their own food
Heterotrophs
Organisms that cannot make their own food and must obtain it from other organisms
Respiration
The process by which food is converted into useable energy for life functions
Homeostasis
The tendency of living organisms to control or regulate changes in their internal environment
Diffusion
The movement of moleclues from an area of high concentration to an area of low concentration
Osmosis
The diffusion of water across a selectively permeable membrane
Osmoconformer
An organism that allows its internal concentration of salts to change in order to match the external concentration of salts in the surrounding water
Osmoregulator
An organism that regulates its internal concentration of salts
Poikilotherm
An organism whose body temperature changes with its surrounding environment
Ectotherm
An organism whose body temperature is controlled by its surrounding environment
Homeotherm
An animal that mantains a controlled internal body temperature using its own heating and cooling mechanisms
Endotherm
An organism whose internal body temperature is a result of internal sources of heat
Asexual reproduction
Reproduction accomplished by a single organism
Sexual reproduction
Reproduction that involves the union of gametes from two organisms: a male and a female
Binomial nomenclature
Identifying an organism by its genus and species name