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16 Cards in this Set

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Cell
a membrane-covered structure that contains all of the materials necessary for life
Stimulus
a change in an organism's environment that affects the activity of the organism
Homeostasis
the maintenance of a stable internal environment
Asexual reproduction
a single parent produces offspring that are identical to the parent
Sexual reproduction
requires two parents to produce offspring that will share characteristics of both parents
DNA
deoxyribonucleic acid - the cells of all living things
Heredity
the transmission of chacteristics from one generation to the next
Metabolism
the total of all of the chmical activites that it performs
Producers
organisms such as plants. they can produce their own food
Consumer
organisms that must eat other organisms to get food
Decomposer
organisms that get their food by braking down the nutrients in dead organisms or animals wastes
Protein
large molecules that are made up of subunits called amino acids
Carbohydrates
are a group of compounds made of sugars
Phospholipids
are the molecules that form much of the cell membrane
Nucleic acids
are compounds made up of subunits called nucleotides
ATP
Adenosine triphosphate
the major ffuel used for all cell activities that require energy