Choose "innate" if the behavior is an innate behavioral adaptation and "learned" if it is a learned behavioral adaptation.
a stickleback fish attacks fish with a red belly.
a.
innate
b.
learned

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.