2.1-2.2 Flashcards
Define Natural Selection
The process by which organisms that are best adapted to their environment are most likely to survive and reproduce.
Define Adaptation
An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.
Define Fossil
The preserved remains or traces of an organism that lived in the past.
Evolution
Change over time; the process by which modern organisms have descended from ancient organisms.
What three factors affect natural selection
Variation, over-production, competition
Competition
The struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time.
Species
A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce
Artificial Selection
The process by which humans breed organisms with desired traits to produce the next generation; selective breeding
Homologous Structures
Structures that are similar in different species and that have been inherited from a common ancestor.
Charles Darwin
A british naturalist who went on a boat called the Beagle to the Galapagos Islands and saw that different variations of animals, and discovered that they all and a common ancestor, and came up with the theory of Natural Selection.
People that helped prove evolution
Linnaeus, Lamarck, Anning, Lyell, Charles Darwin.