inherited characteristic that improved an organism's ability to survive and reproduce in a particular environment.
Domain of prokaryotic organisms that are biochemically and genetically distinct from bacteria.
Domain of prokaryotic organisms that are biochemically and genetically distinct from archaea.
all the parts of the planet that are inhabited by living things, sum of all Earth's ecosystems.
Basic unit of living things; separated from environment by plasma membrane.
the separation of distinct organisms by physical description.
Organism that obtains food by eating producers (autotrophs) or other consumers.
the state or fact of being diverse; difference; unlikeness.
genetics; genetic material that determines your traits and physical appearance.
broadest category used to classify life forms.
community of living things plus the nonliving features of the environment that support them.
any source of usable power, as fossil fuel, electricity, or solar radiation.
the air, water, minerals, organisms, and all other external factors surrounding and affecting a given organism at any time.
a domain that includes animals, protist, fungi, plants.
Cell with a nucleus (surrounded by its own membrane) and other internal organelles.
generation-to-generation change in the proportion of different inherited genes in a population that accounts for all of the changes that have transformed life over a long period of time.
unit of inherited information in DNA.
internal stability, or "steady state maintained by a body.
the genetic characters transmitted from parent to offspring, taken collectively.
more than one cell.
process in which individuals with traits well-suited to the environment produce more offspring in average than do other individuals.
process by which plants use the sun's energy to convert water and carbon into sugars.
group of individuals of the same species living in a particular area at the same time.
organism that makes its own food (autotroph) and produces organic molecules that serve as food for other or organisms in the ecosystem.
cell lacking a nucleus and most other organelles
ability of organisms to regulate their internal conditions
the act or process of reproducing.
involves asking questions about nature and then using observations or experiments to find possible answers to those questions.
a closely integrated group of social organisms of the same species exhibiting division of labor.
distinct form of life.
complex organization formed from a simpler combination of parts.
consisting of a single cell.
identification, naming, and classification of species.
many classification groups.
one classification group.