Adaptation 7th Grade Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
Species | A group of organisms that possess similar genes and traits which no other group possesses. |
Genetic Variation | Slight differences in an organism's traits that are considered normal. |
Phenotype | The physical appearance, behavior or trait of an organism. |
Trait | One form of a visible characteristic or behavior determined by a particular allele. |
Allele | Different forms of the same gene that contain slightly different genetic information for slightly different traits. |
Dominant | An allele that will produce a trait that masks another (recessive) trait for the same characteristic. |
Recessive | An allele that produces a trait that is masked by a dominant trait. |
Genotype | The genes that determine an organism's phenotype. |
Environment | An organism's physical surroundings, such as food supply, soil, weather, water, trees, and mountains. |
Adaptation | An increase in the proportion of the individuals of a species that possess a necessary trait, allowing the species to survive a change in an environmental factor. |
Extinct | When all individual organisms of a species have died. |
Environmental Pressure | A change in an organism's environment that selects for organisms with slight differences in a trait that give that organism a survival or reproductive advantage. |
Natural Selection | Sometimes called "Survival of the Fittest." |
Fossil | The remains of an organism, often its bones that are left after it has died. |
Paleontologist | A scientist who uses fossils to study organisms that once existed but are now extinct. |
Created by:
ireneott
Popular Genetics sets