Ecology Practice Test

1. What chemical reaction releases the free energy of organic compounds for use by organisms? Photosynthesis Protein synthesis Chemosynthesis Cell respiration

2. Which of these is a type of primary consumer in an ecosystem? Carnivore Detrivore Herbivore Omnivore

3. Which kingdoms have members who are decomposers 3. Which kingdoms have members who are decomposers? Choose all that apply. Monera (bacteria) Protista Fungi Animalia

4. In what way does deforestation contribute to the lack of nutrients available in soil? the lack of tree roots won’t hold in soil, leading to soil loss slash and burn agriculture returns nutrients to the soil the lack of shading from the trees cause evaporation of water decomposers will find other sources of organic matter to use

5. All organisms contribute to the carbon cycle through the process of ___. Protein synthesis Cell respiration Photosynthesis Chemosynthesis

6. After an organism dies, nitrogen is returned to the soil in the form of ___. Nitrogen gas proteins Ammonia nitrates

7. Which one of these is a greenhouse gas? Choose all that apply. Oxygen Nitrogen Water vapor Carbon dioxide

8. If an energy pyramid has a total of 500,000 calories at its base, how many calories are transferred to its TERTIARY consumers? 5000 500 25,000 2500

9. Organisms store energy in the form of ___. Chemical energy Free energy Heat energy light

10. Why are herbivores crucial to the success of ecosystems? They are not eating up other consumers They are able to transform organic matter into inorganic matter. They are able to transform nitrates into proteins. They are able to concentrate the proteins from producers.