By Tobi and Karen
What is Evolution???
When different kinds of living organisms are thought to have developed from earlier organisms during history.
What Is Natural Selection and How Does It Lead To New Species Or Change Them?
When organisms adapted to their environment they tend to survive and produce more offspring. As the new species are adapting the old ones will die out.
Homologous vs. Analogous
Homologous - Having the same relation, relative position or structure. Analogous - Having the same function but not the same structure.
Fossils- Shows evidence of ancestry between curerent species and species from log ago. Embryology- Shows they similarity in the embryo stucture for different organisms. Molecular Evidence-All living things are fundamentally alike. Anatomy- Study of the bodily structure of humans, animals, and other living organisms.
What Is Survival Of The Fittest?
Natural selection in which only organisms best adapted to existing conditions are able to survive and reproduce.
Convergent and Divergent Evolution
Convergent Evolution- A pattern of evolution in which distantly related organisms evolve similar traits; were not present in the last common ancestors. Divergent Evolution is the pattern of evolution in which species that once were similar to an ancestral species diverge, or become increasingly distinct.
What Is Adapations????
The process of adapting, it is important because the organisms need to survive.
Geographic and Reproduction Isolation
Geographic Isolation is when an organism is isolated from each other that prevents them from mating. Example: Tree frog population with an ocean betweem them. Reproductive isolation is a processe that prevents the members of two different species that cross or mate from producing offspring. Example: One population of tree frogs mate in the spring and the others mate in the winter.