Glossary


 * community**-all organisms in an ecosystem
 * DNA**-genetic material
 * ecosystem**-all organisms (biotic) and nonliving physical components (abiotic) that affect organisms in an area
 * organ**-structure consisting of several tissues adapted as a group to perform specific function
 * organism**-individual living thing
 * organ system**-group of organs that work together in performing specific functions
 * population**-interacting group of individuals of one species