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- 1. Multiple Choice
1. What are carbon dioxide (CO2) and water (H2O) converted into as a result of photosynthesis?
a. O2 (oxygen) only
b. C6H12O6 (glucose) only
c. O2 (oxygen) and C6H12O6 (glucose)
d. Neither O2 (oxygen) nor C6H12O6 (glucose)
- 2. Multiple Choice
2. Identify which of the following best explains the transformation process in photosynthesis.
a. Electrical energy is transformed into chemical energy.
b. Chemical energy is transformed into light energy.
c. Light energy is transformed into electrical energy.
d. Light energy is transformed into chemical energy.
- 3. Multiple Choice
3. Which of the following terms describes an organism that gets its energy from breaking down dead material?
a. omnivore
b. carnivore
c. herbivore
d. decomposer
- 4. Multiple Choice
4. Overall, the process of cellular respiration __________.
a. requires energy from the sun.
b. releases energy from food.
c. requires energy from food.
d. releases energy from the sun.
- 5. Multiple Choice
5. What happens to decomposed material?
a. It disappears.
b. Its components are recycled into the soil, air, and water.
c. Herbivores eat it.
d. Omnivores eat it.
- 6. Multiple Choice
6. Sunlight, water supply, and minerals in an ecosystem are best described as ______ factors.
a. biotic
b. abiotic
c. climatic
d. geologic
- 7. Multiple Choice
7. Where do herbivores obtain the energy needed to live?
a. directly from the sun.
b. from plants only.
c. from animals only.
d. from plants and animals.
- 8. Multiple Choice
8. What are C6H12O6 (glucose) and O2 (oxygen) converted into in cellular respiration?
a. CO2 (carbon dioxide) only
b. H2O (water) only
c. CO2 (carbon dioxide) and H2O (water)
d. neither CO2 (carbon dioxide) nor H2O (water)
- 9. Multiple Choice
9. What would happen within a few months if all herbivores on Earth disappeared overnight?
a. There would be no visible impact.
b. Plants would die out quickly, and all organisms would thrive.
c. Plants would grow out of control, and all other organisms would thrive.
d. Plants would grow out of control, and carnivores would die out quickly.
- 10. Multiple Choice
10. Which statement best summarizes what happens to energy in an ecosystem when it reaches the top of the food chain?
a. Then flow of energy stops when the top predator dies.
b. The flow of energy stops when a secondary predator decomposes.
c. The energy flows in the opposite direction, back down the food chain.
d. The energy is transferred to the soil and recycled back to the producers.
- 11. Multiple Choice
11. According to the food web below, the mushrooms would be classified as
a. consumers.
b. decomposers.
c. producers.
d. herbivores.
- 12. Multiple Choice
12. In the food web shown, the rabbit is the primary food source for snakes, owls, and cats. If the rabbit population is infected with a disease that causes them to die off, what will happen to the populations of snakes, owls, and cats?
a. They will remain unchanged because they will eat different animals for food.
b. They will decrease in number.
c. They will increase in number.
d. They will hibernate until the rabbit population recovers.
- 13. Multiple Choice
13. The O2 (oxygen) produced during photosynthesis is _________.
a. used for respiration by animals and plants.
b. used for respiration by plants only.
c. used for respiration by animals only.
d. not used for respiration.
- 14. Multiple Choice
14. What are the products of photosynthesis?
a. sunlight, carbon dioxide, and water
b. glucose, water, and carbon dioxide
c. glucose and oxygen
d. water and glucose
- 15. Multiple Choice
15. During the process of photosynthesis, plants use carbon dioxide and water to produce what energy storage compounds?
a. proteins
b. lipids
c. carbohydrates
d. nucleic acids
- 16. Multiple Choice
16. Photosynthesis begins with the reactants __________ and ____________ and ends when the products __________ and __________ are created.
a. water, carbon dioxide, glucose, oxygen
b. water, glucose, carbon dioxide, oxygen
c. water, oxygen, carbon dioxide, glucose
d. oxygen, glucose, carbon dioxide, water
- 17. Multiple Choice
17. The plant captures light energy from the sun and used it to convert carbon dioxide and water into food. The process of producing food in plants is known as:
a. transpiration
b. respiration.
c. evaporation.
d. photosynthesis.
- 18. Multiple Choice
18. During cellular respiration, glucose reacts with oxygen to produce water and carbon dioxide. Where in the cell does this reaction take place?
a. in the mitochondria
b. in the nucleus
c. in the cytoplasm
d. in the chloroplasts
- 19. Multiple Choice
20. Which of these statements best describes prey?
a. Prey refers to animals that are hunted and eaten.
b. Prey refers to plants that are found and eaten.
c. Prey refers to animals or plants that are hunted and eaten.
d. Prey are neither plants and animals.
- 20. Multiple Choice
21. Which of the following is an important connection between breathing and cellular respiration?
a. cellular respiration requires CO2 (carbon dioxide)
b. cellular respiration requires C6H12O6 (glucose)
c. cellular respiration requires O2 (oxygen)
d. cellular respiration requires H2O (water)
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