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
chapter 4
| Term | Definition |
|---|---|
| Homeostasis | the condition in which an organism's internal environment is kept stable in spite of changes in external environment. |
| adaption | An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment |
| vertebrate | An animal with a backbone. |
| inverterate | an animal without a backbone |
| tissue | A group of similar cells that preform a specific function. |
| organ | A body structure that is composed of different kinds of tissues that work together. |
| radial symmetry | A body plan in which any number of imaginary lines that all pass through a central point divide the animal into two mirror images. |
| bilateral symmetry | A body plan in which a single imaginary line divides the body into left and right side that are mirror images of each other. |
| chordate | An animal that has a notochord, a nerve cord, and throat punches at some point in its life . |
| notochord | A flexible cod that supports a chordate's back just below the nerve cord. |
| vertebrae | The bones that make up the backbone of an animal, In humans, one of the 26 bones that make up the backbone. |
| ectotherm | An animal whose body temperature is determined by the temperature of its environment. |
| endotherm | An animal whose body temperature is regulated by the internal heat the animal produces. |
Created by:
ale235