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Apologia Marine Bio-Module 2
vocab words
17
Biology
11th Grade
09/30/2011

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