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0G History of Life
0G History of Life on Earth
| Term | Definition |
|---|---|
| structure | any body part (exterior or interior) |
| homologous structures | body structures that evolved from the same ancestor |
| analogous structures | body structures that have the same function, but evolved differently from different ancestors |
| vestigial structures | various cells, tissues, and organs in a body which no longer function in the same way the ancestral form of the trait functioned |
| adaptation | any advantage that aids in the survival and reproduction of a species |
| structural adaptation | things that grow on or in an organism that aid in the survival or reproduction of the species |
| physiological adaptation | substances that the organism creates or natural processes of the organism’s body that aid in the survival of the species |
| behavioral adaptation | actions or choices an organism naturally makes that aids in the survival of the species |
| instinct | a behavior an animal is born with and does not have to learn |
| natural selection | the process whereby organisms better adapted to their environment tend to survive and produce more offspring |
| artificial selection | humans develop particular traits in animals or plants by choosing which ones will reproduce and have offspring |
| mutation | is a change in a DNA sequence, usually caused by mistakes during copying |
| habitat | the specific place where an animal lives |
| environment | everything that surrounds and affects a living thing, including non-living things, such as water and air, as well as other living things |
| predator | an animal that hunts and eats other animals for food. |
| prey | an animal that is taken and eaten by another animal for food |
| cladogram | a diagram that represents evolutionary relationships among organisms |
| phylogenetic tree | a diagram that represents evolutionary relationships among organisms - the length of the lines represent amounts of time |
| ancestor | an early type of animal or plant from which others have evolved. |
| evolutionary history | A sequence of inheritable changes that occurred among a species |
| domesticated | cultivated for food; naturalized, tamed and kept as a pet |
| embryo | an unborn or unhatched offspring in the process of development |
| evolve | to change the genetic code of an organism over time |
| diversity | having several different forms of the same species |
| extinct | organisms that lived in the past but no longer are found on Earth |
| comparative anatomy | the study of the similarities and difference of body structures in different species |
| comparative embryology | the comparison of embryo development across species to show the path of common ancestry |
Created by:
lsiefert
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