Adaptation online exercise - Free Printable

Let's solve this step by step.

We are asked to classify each animal adaptation as either structural or behavioral.

Definitions:

- Structural adaptation: A physical part of the animal’s body (e.g., feathers, claws, coloration).
- Behavioral adaptation: Something the animal *does* (e.g., building a nest, making sounds, playing dead).

Now let's go through each trait:

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1. Beavers build dams to create ponds.
- This is an action — building dams.
→ Behavioral

2. Male elk bugle, or make loud sounds, to attract mates.
- Making sounds is a behavior.
→ Behavioral

3. Penguins have webbed feet that help them swim.
- Webbed feet are a physical body part.
→ Structural

4. Hawks have long, sharp talons to grab prey.
- Talons are body parts.
→ Structural

5. Spiders spin webs to catch prey.
- Spinning webs is an action they perform.
→ Behavioral

6. Opossums "play dead" so predators will leave them alone.
- Playing dead is a behavior.
→ Behavioral

7. Some moths look just like tree bark.
- This is camouflage — a physical appearance.
→ Structural

8. Lizards bask in the sun to get warm.
- Basking is something they do.
→ Behavioral

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Final Answer Table:

| Trait | Structural | Behavioral |
|------|------------|------------|
| Beavers build dams to create ponds. | | ✔ |
| Male elk bugle, or make loud sounds, to attract mates. | | ✔ |
| Penguins have webbed feet that help them swim. | ✔ | |
| Hawks have long, sharp talons to grab prey. | ✔ | |
| Spiders spin webs to catch prey. | | ✔ |
| Opossums "play dead" so predators will leave them alone. | | ✔ |
| Some moths look just like tree bark. | ✔ | |
| Lizards bask in the sun to get warm. | | ✔ |

✔ = Put an X in that box.

So, the completed chart should have:
- Structural: Rows 3, 4, 7
- Behavioral: Rows 1, 2, 5, 6, 8

Let me know if you'd like a printable version!