vocab Flashcards
(20 cards)
Fossil
the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
Embryo
an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization
Species
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
Homologous Structure
similar structures that evolved from a common ancestor.
Analogous Structure
similarity of function and superficial resemblance of structures that have different origins.
Sedimentary Rock
formed from pre-existing rocks or pieces of once-living organisms.
Environment
the surroundings or conditions in which a person, animal, or plant lives or operates.
Generation
all of the people born and living at about the same time, regarded collectively.
Population
all the inhabitants of a particular town, area, or country.
Individual
single; separate.
Heritable
transmissible from parent to offspring.
Trait
a distinguishing quality or characteristic, typically one belonging to a person.
Natural Selection
the process whereby organisms better adapted to their environment tends to survive and produce more offspring.
Reproduction
the action or process of making a copy of something.
Survival
the state or fact of continuing to live or exist, typically in spite of an accident, ordeal, or difficult circumstances.
Adaptation
the action or process of adapting or being adapted.
Survival of the Fittest
the continued existence of organisms which are best adapted to their environment, with the extinction of others, as a concept in the Darwinian theory of evolution.
Extinction
the fact or process of a species, family, or other group of animals or plants becoming extinct.
Fitness
the condition of being physically fit and healthy.
Evolution
the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.