Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Unit 5 - Adaptations
| Term | Definition |
|---|---|
| dichotomous key | a tool used to identify organisms in nature using observations and a series of questions |
| trait | a physical characteristic or quality of an organism |
| adaptation | an inherited trait that allows an organism to survive and reproduce in its environment |
| genetic variation | the differences in traits among species |
| natural selection | organisms that are better suited for their environment are more likely to survive and reproduce |
| selective breeding | also called artificial selection |
| selective breeding | people select a trait from an organism to be passed on - deliberate breeding |
| Charles Darwin | the naturalist known for his contributions to the Theory of Natural Selection - how organisms change over time |
| structural adaptation | also called physical adaptation |
| structural adaptation | the external physical feature (body part) of an organism that helps it survive in its environment |
| behavioral adaptation | an activity, action or behavior that an organism does to help it survive in its environment |
| phloem | the internal tissue of a plant that carries sugar and organic substances throughout a plant - up and down |
| xylem | the internal tissue of a plant that carries water upward from the roots to every part of the plant |
| mutation | changes in the genetic code that lead to different traits appearing |
| mimicry | an adaptation that allows animals to lookor act like another organism to avoid predators |
| learned behavior | a behavior that has been learned from experience or observation |
| trait | a characteristic that an organism can pass on to its offspring through its genes |
| camoflauge | an adaptation that allows an organism to blend in with its environment |
| hibernation | a period of inactivity that some animals experience in winter that allows them to survive on stored body fat |
| migration | an animals long distance journey to a new location on a seasonal basis |
| taxonomy | the naming and classifying organisms based on characteristics |
| scientific name | the Latin name given to an organism, consisting of two words - a genus and species |
| Homo sapien | the scientific name for a human |
| couplet | in a dichotomous key - consists of two description choices which should lead you to the correct answers |
| species | organisms with similar characteristics that can produce offspring when they mate |
| internal adaptation | an adaptation inside the body - fish gills, bird's hollow bones, plant xylem |
| gills | an internal adaptation that allows fish to get and use dissolved oxygen from the water they are in (breathe) |
| instinct | a behavioral pattern that an animal is born with |
| extinction | the disappearance of all members of a species |
| physiological adaptation | an adaptation that allows an organism to perform special functions within the body |
Created by:
Blackcat8765
Popular Science sets