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Biology Ch1 Review

Chapter 1 Review Vocabulary

TermDefinition
Irreducible complexity When a system is made up of several interacting components, each of which is necessary for the system to function, and none of which can be made by modifying an already-existing component
Metabolism The sum of all chemical reactions occurring in an individual cell to sustain life
Catabolism The chemical reactions occurring in an individual cell that break down complex molecules into simple ones, releasing energy that the organism can use
Anabolism The chemical reactions that build complex molecules from simple ones, usually requiring the input of energy
Homeostasis The ability of an organism to maintain a constant internal environment
Symbiosis A long-term relationship between organisms of different species
Asexual reproduction A mode of reproduction in which the offspring comes from only one organism
Sexual reproduction A mode of reproduction which combines genetic information from a male individual and a female individual to produce offspring
Differentiation The process by which a cell becomes specialized to perform a specific set of tasks
Taxonomy The science of classifying things, such as organisms
Prokaryotic cell A cell without organelles
Eukaryotic cell A cell with organelles
Energy The ability to do work
Producers Organisms that can produce energy-rich molecules as their food source
Consumers Organisms that must eat other organisms for food
Decomposers Organisms that decompose dead organisms
Natural selection The process by which organisms better adapted to an environment will be more likely to survive and reproduce, passing those adaptations to their offspring
Mutation A change in an organism's DNA that alters the information contained in the DNA
Created by: MelRodriguez
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