Unit 1 Vocab

the basic unit of life

a living individual that consists of one or more cells

• Life is organized • life requires energy • life maintains internal constancy • life reproduces itself, grows, and develops • life evolves

atoms molecules organelles cells

organs organ systems organism

population community ecosystem biosphere

quality that results from interactions of a system’s components

make their own food from nonliving sources

obtain energy by eating other organisms, alive or dead

obtain energy from wastes or dead organisms

the process by which a cell or organism maintains a state of constancy

genetic material comes from only one parent, and all offspring are virtually identical

Genetic material from two parent individuals unites to form an offspring, which has a new combination of inherited traits.

an inherited characteristic or behavior enables an organism to survive and reproduce successfully in its environment.

the enhanced reproductive success of certain individuals from a population based on inherited characteristics

a change in the genetic make up of a population over multiple generations

the biological science of naming and classifying organisms

the basic unit of classification; a distinct “type” of organism

category that groups closely related species

the broadest and most inclusive taxonomic category

Domain Bacteria Domain Archaea Domain Eukarya

cells lack nuclei (prokaryotic) unicellular cell wall is made up of either lipopolysaccharide or peptidoglycan

cells lack nuclei (prokaryotic unicellular cell wall is made up of pseydopeptidoglycan closer evolutionary relationship to eukaryotes than bacteria

cells contain nuclei (eukaryotic) unicellular or multicellular 4 main kingdoms