Question

figure a shows a lake ecosystem. the parts of this ecosystem are listed below. next to each part, write living, if it is living. write nonliving, if the part is not living.
figure a a lake ecosystem

1. sunlight ____________ 9. frog ____________
2. catfish ____________ 10. muddy lake bottom ____________
3. weeping willow tree ____________ 11. air ____________
4. raccoon ____________ 12. insects ____________
5. heat ____________ 13. bird ____________
6. water ____________ 14. bacteria, algae, and other one - celled organisms (not shown, but always present in a lake ecosystem) ____________
7. water plants ______________
8. why are the one - celled organisms not shown? ______________

Explanation:

• Sunlight: Non - living. It is an abiotic factor (a non - living part of the ecosystem that provides energy).
• Catfish: Living. It is a fish (an animal) which is a living organism.
• Weeping willow tree: Living. It is a plant (a living organism).
• Raccoon: Living. It is an animal (a living organism).
• Heat: Non - living. It is an abiotic factor (a form of energy, non - living).
• Water: Non - living. It is an abiotic factor (a chemical compound, non - living).
• Sunfish: Living. It is a fish (an animal) which is a living organism.
• Water plants: Living. They are plants (living organisms).
• Frog: Living. It is an animal (a living organism).
• Muddy lake bottom: Non - living. It is made up of soil and sediment (abiotic components).
• Air: Non - living. It is a mixture of gases (abiotic factor).
• Insects: Living. They are animals (living organisms).
• Bird: Living. It is an animal (a living organism).
• Bacteria, algae, and other one - celled organisms: Living. Bacteria are prokaryotes, algae are protists (and some are considered plants in a broad sense), and all are living organisms.
• Why are the one - celled organisms not shown?: They are too small to be seen clearly in the diagram.

Answer:

1. nonliving
2. living
3. living
4. living
5. nonliving
6. nonliving
7. living
8. living
9. living
10. nonliving
11. nonliving
12. living
13. living
14. living
15. They are too small to be seen clearly in the diagram.