Warm Up: 09/14 Copy Agenda On Response Page, Math Monday! SHOW YOUR WORK The plants of an ecosystem obtained 20, 810 Calories of energy from sunlight per year. The herbivores in that ecosystem ate all the plants but obtained only 3,370 Calories of energy. 1. How much energy did the plants use? 2. Approximately how much energy will the carnivores use?

Answer 1. 17,440 Calories were used by the plants 2. The carnivores would receive approximately 10% of 3, 370 Cal. which is 337 Calories of energy

Warm Up: 09/15 Copy Agenda On Response Page, Use a complete sentence to explain your answer Could a balanced ecosystem contain producers and consumers but not decomposers? Why or Why not? http://www.teachersdomain.org/asset/tdc02_vid_decompose/

Answer No, an ecosystem could not be balanced without decomposers. They are needed to return raw materials back to the environment. They are nature’s recycler’s. They break down the remains of dead organisms and convert it into a usable form.

Warm Up: 09/16 Copy Agenda On Response Page, Use a complete sentence to explain your answer What would happen if there were no regulations on hunting and all the cougars were killed in this deciduous forest?

Answer The deers and bunnies would over populate and then they would eat up all the grass. Then there would be no grass in the ecosystem causing the herbivores animals to starve to death. If the herbivores died then there would be no food for the carnivores and they they would die off from starvation as well.