The producer in an energy pyramid contains about 1,000 kcal of energy.

About how much of this energy is used by the producer or lost as heat to the environment?

10 kcal
90 kcal
100 kcal
900 kcal

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat