Educational worksheet on animal life cycles, distinguishing between complete and incomplete metamorphosis with illustrated examples.

Let’s go step by step to figure out whether each animal has a Complete or Incomplete metamorphosis.

First, remember the definitions from the worksheet:

✔ Complete Metamorphosis:
- Starts as an egg → hatches into a larva (looks very different from adult) → becomes a pupa (in a cocoon or chrysalis) → turns into an adult.
Examples: butterflies, beetles, flies, frogs (yes, frogs too!).

✔ Incomplete Metamorphosis:
- Starts as an egg → hatches into a nymph (looks like a small version of the adult) → grows bigger, maybe sheds skin → becomes adult. No pupal stage.
Examples: grasshoppers, cockroaches, snakes, birds, mammals.

Now let’s look at each animal one by one:

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1. Grasshopper
→ Hatches from egg as a tiny grasshopper (nymph), looks like adult but smaller and no wings yet. Grows by shedding skin.
→ Incomplete

2. Bear
→ Mammal. Born alive, looks like a baby bear, grows up slowly. No egg, no larva, no pupa.
→ Incomplete

3. Turkey
→ Bird. Hatches from egg, looks like a baby turkey (chick), grows into adult. No larval or pupal stage.
→ Incomplete

4. Butterfly
→ Classic example! Egg → caterpillar (larva) → chrysalis (pupa) → butterfly (adult).
→ Complete

5. Raccoon
→ Mammal. Born alive, looks like mini raccoon, grows up. No metamorphosis stages.
→ Incomplete

6. Dragonfly
→ Egg → nymph (lives in water, looks nothing like adult dragonfly) → molts several times → becomes flying adult. Wait — actually, dragonflies do NOT have a pupal stage. They go through incomplete metamorphosis? Hmm… Let me double-check.

Wait — correction: Dragonflies undergo incomplete metamorphosis, but their nymphs live in water and look very different. However, they still don’t have a pupal stage — so it’s still classified as incomplete. But wait — some sources say dragonflies are “hemimetabolous” which is incomplete. Yes — correct.

BUT — hold on! Actually, many educational materials classify dragonflies as having incomplete metamorphosis because there’s no pupa. The nymph just grows and molts until it becomes adult.

So → Incomplete

Wait — I think I made a mistake here. Let me recheck with standard curriculum.

Actually — in most elementary science classes, dragonflies are taught as having incomplete metamorphosis because they skip the pupa stage. Their young are called naiads or nymphs, and they grow directly into adults.

Yes — so Incomplete

But wait — let’s check the frog next.

7. Frog
→ Egg → tadpole (larva, looks totally different) → tadpole grows legs, loses tail → becomes frog. Is there a pupal stage? Not exactly — but frogs ARE considered to have complete metamorphosis in many curricula because the change is so dramatic and involves major restructuring. Even though they don’t make a cocoon, the transformation is complete.

Actually — according to the definition given in the worksheet:
> “After the larval stage, a pupal stage occurs...” — frogs don’t have a pupal stage. So technically, based on THIS worksheet’s definition, frogs might be incomplete?

Wait — this is tricky. Let’s read the worksheet again:

It says:
> Complete Metamorphosis: ...after larval stage, a pupal stage occurs...

Frogs: egg → tadpole (larva) → froglet → adult. No pupa. So by strict definition here, maybe not complete?

But then it also says:
> Many other animals, such as mammals, birds, and reptiles, and some insects, go through a cycle called Incomplete Metamorphosis.

And for incomplete:
> ...young that emerges looks somewhat more like the adult... called nymph stage...

Tadpoles do NOT look like frogs — they’re fish-like. So that doesn’t fit “nymph”.

This is confusing. Let me think what is typically taught.

In most K-5 science, frogs are taught as having complete metamorphosis even without a pupa, because the change is so radical. But strictly speaking, biologically, amphibians like frogs undergo “metamorphosis” but not “complete metamorphosis” like insects do.

However, looking back at the worksheet’s own examples:

It says:
> Animals such as many insects, and amphibians go through a life cycle called Complete Metamorphosis.

Oh! It explicitly includes amphibians in complete metamorphosis!

So even though frogs don’t have a pupa, the worksheet considers them complete because it groups amphibians with insects that do have full metamorphosis.

Therefore, per this worksheet’s definition → Frog = Complete

Okay, good.

8. Snake
→ Reptile. Hatches from egg (or born live), looks like tiny snake, grows bigger, sheds skin. No larva, no pupa.
→ Incomplete

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Now let’s list them in order as shown in the image (left to right, top row then bottom row):

Top row:
1. Grasshopper → Incomplete
2. Bear → Incomplete
3. Turkey → Incomplete
4. Butterfly → Complete

Bottom row:
5. Raccoon → Incomplete
6. Dragonfly → Incomplete *(no pupal stage)*
7. Frog → Complete *(per worksheet including amphibians)*
8. Snake → Incomplete

Wait — let me confirm dragonfly again. Some curricula may vary, but since the worksheet says “some insects” go through incomplete, and dragonflies are insects that don’t have pupae, yes — incomplete.

Final answers per position:

Row 1:
Grasshopper — Incomplete
Bear — Incomplete
Turkey — Incomplete
Butterfly — Complete

Row 2:
Raccoon — Incomplete
Dragonfly — Incomplete
Frog — Complete
Snake — Incomplete

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Final Answer:
Grasshopper: Incomplete
Bear: Incomplete
Turkey: Incomplete
Butterfly: Complete
Raccoon: Incomplete
Dragonfly: Incomplete
Frog: Complete
Snake: Incomplete