An ecosystem contains blue whales, sea otters, giant kelp, and various species of phytoplankton. what type of biodiversity is being described? 1. ecosystem diversity
2. species diversity
3. genetic diversity
4. trait diversity

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

The chemical form of energy that is useable by the cell to do work

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.