Let's go through each item in the worksheet and determine the correct
level of ecological organization it refers to. The levels, from smallest to largest, are:
1.
Organism – a single living thing.
2.
Population – a group of individuals of the
same species living in the same area.
3.
Community – all populations of
different species living and interacting in an area.
4.
Ecosystem – includes the community (living things) and the
abiotic factors (non-living things like soil, water, sunlight).
5.
Biosphere – the entire global ecosystem; all life on Earth.
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1. Image: Underwater scene with fish, coral, plants, etc.
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Options: Population / Ecosystem
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Answer: ✔ Ecosystem
-
Why? This image shows multiple species (fish, coral, plants), abiotic elements (rocks, water), and interactions — this is an
ecosystem.
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2. "A flock of sheep"
-
Options: Community / Population
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Answer: ✔ Population
-
Why? A flock is a group of
the same species (sheep) living together. So it's a
population.
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3. "A group of organisms of the same species that live in an area"
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Options: Population / Community
-
Answer: ✔ Population
-
Why? This is the
definition of a population.
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4. Image: Fox, tree, fish, insects, pond, sun
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Options: Biosphere / Ecosystem
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Answer: ✔ Ecosystem
-
Why? It includes
living things (fox, fish, insects, plants) and
non-living parts (sun, water, soil). That’s an
ecosystem.
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5. Image: Three shrimp
-
Options: Population / Community
-
Answer: ✔ Population
-
Why? All three are the
same species, so they form a
population.
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6. Image: One cow
-
Options: Organism / Ecosystem
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Answer: ✔ Organism
-
Why? A single individual = one
organism.
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7. Image: Camel and lizard in desert with cacti
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Options: Population / Ecosystem
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Answer: ✔ Ecosystem
-
Why? Multiple species (camel, lizard, cacti) and abiotic factors (sand, heat) → this is an
ecosystem.
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8. "An interacting group of various species in a common location"
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Options: Community / Ecosystem
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Answer: ✔ Community
-
Why? This is the definition of a
community — different species interacting. (Note: If abiotic factors were included, it would be an ecosystem.)
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9. "The coconut trees on an island"
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Options: Population / Community
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Answer: ✔ Population
-
Why? All are
coconut trees (same species), so this is a
population.
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10. Image: Cow, squirrel, butterfly, trees, grass
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Options: Ecosystem / Population
-
Answer: ✔ Ecosystem
-
Why? Shows
multiple species and
abiotic components (trees, grass, soil). So it's an
ecosystem.
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✔ Final Answers Summary:
| Item | Correct Answer |
|------|----------------|
| 1. Underwater scene | Ecosystem |
| 2. A flock of sheep | Population |
| 3. Group of same species | Population |
| 4. Fox, pond, fish, sun | Ecosystem |
| 5. Three shrimp | Population |
| 6. One cow | Organism |
| 7. Camel and lizard in desert | Ecosystem |
| 8. Interacting various species | Community |
| 9. Coconut trees on island | Population |
| 10. Cow, squirrel, butterfly, trees | Ecosystem |
>
✔ Remember:
> -
Population = same species
> -
Community = different species interacting
> -
Ecosystem = community + abiotic environment
Let me know if you'd like a printable version or a labeled diagram!
Parent Tip: Review the logic above to help your child master the concept of free printable ecosystem worksheet.
