Solved Biology Abiotic and Biotic Factors Directions: Next | Chegg.com - Free Printable

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Understanding the Terms:

- Abiotic factors are non-living components of an ecosystem. Examples include sunlight, water, temperature, soil, and air.
- Biotic factors are living components of an ecosystem. Examples include plants, animals, fungi, and bacteria.

Now, let’s classify each item:

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1. tree – Living plant → B
2. soil – Non-living (though it contains organic matter, it is considered abiotic) → A
3. sunlight – Non-living energy source → A
4. grass – Living plant → B
5. cow – Living animal → B
6. temperature – Non-living physical condition → A
7. fish – Living animal → B
8. water – Non-living substance → A
9. bird – Living animal → B
10. clouds – Non-living atmospheric formation → A
11. building – Man-made, non-living structure → A
12. human – Living organism → B
13. cat – Living animal → B
14. paper – Man-made, non-living material → A
15. rusty nail – Non-living object (metal that has corroded) → A
16. algae – Living organism (plant-like protists) → B
17. rain – Non-living (water falling from sky) → A
18. spider – Living animal → B
19. shrubs – Living plants → B
20. clothing – Man-made, non-living → A

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Final Answers:

1. B tree
2. A soil
3. A sunlight
4. B grass
5. B cow
6. A temperature
7. B fish
8. A water
9. B bird
10. A clouds
11. A building
12. B human
13. B cat
14. A paper
15. A rusty nail
16. B algae
17. A rain
18. B spider
19. B shrubs
20. A clothing

✔ Explanation Summary:
- Biotic (B): All living things — plants, animals, microorganisms.
- Abiotic (A): Non-living elements like weather, soil, water, man-made objects, etc.

This classification helps in understanding how ecosystems function, as both types of factors interact to support life.