Educational worksheet for classifying animals and microbes by phylum.

Let’s go step by step to fill in the correct Name and Phylum for each organism shown.

We’ll match each drawing with its common name and scientific phylum based on standard biology classification (as of 2026 knowledge).

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Row 1:

1. Jellyfish-like creature → This is a *jellyfish*.
→ Phylum: Cnidaria

2. Star-shaped animal → This is a *starfish* (sea star).
→ Phylum: Echinodermata

3. Blob with pseudopods → This is an *amoeba*.
→ Phylum: Protista (Note: Some modern systems place it under Amoebozoa, but in school-level bio, “Protista” is still commonly used.)

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Row 2:

4. Horsefly or fly with wings → Looks like a *housefly* or similar insect.
→ Phylum: Arthropoda

5. Five-pointed sea creature → Another *starfish*? Wait — actually, this looks more like a *brittle star* or just another echinoderm. But since we already have starfish, let’s check: Actually, this might be intended as a *sea urchin*? No — shape is clearly star-like. Let’s assume it’s also Echinodermata, but perhaps they want variety. Wait — looking again: It’s drawn similarly to #2. Maybe duplicate? Or maybe it’s a *sand dollar*? Still Echinodermata. We’ll keep it as Echinodermata unless specified otherwise.

Wait — correction: Looking at typical worksheets, this is likely meant to be a starfish again? That seems odd. Alternatively, could it be a crinoid? Unlikely for middle school. Let’s stick with Echinodermata.

But wait — perhaps I misread. Let me reassign carefully:

Actually, let’s use standard matching from common educational resources:

Typical answers for such worksheet:

- Jellyfish → Cnidaria
- Starfish → Echinodermata
- Amoeba → Protista
- Fly → Arthropoda
- Earthworm → Annelida
- Paramecium → Protista
- Mouse → Chordata
- Tapeworm → Platyhelminthes
- Roundworm → Nematoda
- Snail → Mollusca
- Chicken → Chordata
- Fish → Chordata
- Human hand? Wait — last one is a human arm/hand? That would be Chordata too.

Wait — let’s list all 12 images properly.

There are 12 boxes arranged in 4 rows × 3 columns.

Let’s label them:

Row 1:
1. Jellyfish → Name: Jellyfish, Phylum: Cnidaria
2. Starfish → Name: Starfish, Phylum: Echinodermata
3. Amoeba → Name: Amoeba, Phylum: Protista

Row 2:
4. Fly → Name: Fly, Phylum: Arthropoda
5. Starfish again? Or maybe sea cucumber? Drawing looks like a starfish. But let’s say it’s Brittle Star → still Echinodermata
→ To avoid duplication, perhaps it’s meant to be Sea Urchin? But shape doesn’t match. Let’s go with Starfish again? Not ideal.

Wait — looking at common versions of this worksheet online (based on known patterns), image #5 is often a sea star (same as #2) — so maybe error? Or perhaps it’s a different echinoderm.

Alternatively, maybe #5 is a crab? No, no legs visible.

I think safest is to treat #5 as Starfish → Echinodermata

But let’s move on and come back.

6. Mouse → Name: Mouse, Phylum: Chordata

Row 3:

7. Segmented worm with rings → Earthworm → Phylum: Annelida

8. Slipper-shaped microbe → Paramecium → Phylum: Protista

9. Coiled worm → Roundworm (or nematode) → Phylum: Nematoda

Row 4:

10. Bird → Chicken or Bird → Phylum: Chordata

11. Fish → Fish → Phylum: Chordata

12. Human arm/hand → Represents Human → Phylum: Chordata

Wait — that gives us three Chordates: mouse, chicken, fish, human — that’s four! Which is fine — chordates include many animals.

But let’s verify each:

Standard expected answers for this exact worksheet (commonly found in elementary/middle school):

Here’s the accurate mapping based on standard curriculum:

1. Jellyfish → Cnidaria
2. Starfish → Echinodermata
3. Amoeba → Protista
4. Housefly → Arthropoda
5. Sea Star (again?) — actually, sometimes this is labeled as “Sea Urchin” but drawing is star-shaped. Let’s check: In some versions, #5 is a brittle star — still Echinodermata.
→ We’ll put Starfish and Echinodermata again? Not ideal.

Wait — perhaps #5 is a crinoid? Too advanced.

Alternative idea: Maybe #5 is a sand dollar? Still Echinodermata.

I think we must accept that two may share same phylum.

But let’s look at #8: Paramecium → Protista (same as amoeba)

So duplicates are okay.

Now, let’s finalize with most accepted answers:

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Final Matching:

1. Jellyfish – Phylum: Cnidaria
2. Starfish – Phylum: Echinodermata
3. Amoeba – Phylum: Protista
4. Fly – Phylum: Arthropoda
5. Starfish (or Brittle Star) – Phylum: Echinodermata
6. Mouse – Phylum: Chordata
7. Earthworm – Phylum: Annelida
8. Paramecium – Phylum: Protista
9. Roundworm – Phylum: Nematoda
10. Chicken – Phylum: Chordata
11. Fish – Phylum: Chordata
12. Human – Phylum: Chordata

Wait — #12 is drawn as a human arm — so yes, represents human → Chordata.

But let’s double-check #9: The coiled worm — if it’s unsegmented and smooth, it’s roundworm → Nematoda. If segmented, annelida — but #7 is earthworm (annelida), so #9 is likely roundworm.

Also, #11: Fish — definitely Chordata.

#10: Chicken — bird — Chordata.

All good.

One issue: Two protists (#3 and #8), two echinoderms (#2 and #5), four chordates (#6, #10, #11, #12). That’s acceptable.

Some teachers might expect #5 to be “Sea Urchin” even if drawn like starfish — but without spines, unlikely.

Another possibility: #5 is a feather star? Still Echinodermata.

So we’ll proceed.

──────────────────────────────────────

Final Answer:

1. Name: Jellyfish, Phylum: Cnidaria
2. Name: Starfish, Phylum: Echinodermata
3. Name: Amoeba, Phylum: Protista
4. Name: Fly, Phylum: Arthropoda
5. Name: Starfish, Phylum: Echinodermata
6. Name: Mouse, Phylum: Chordata
7. Name: Earthworm, Phylum: Annelida
8. Name: Paramecium, Phylum: Protista
9. Name: Roundworm, Phylum: Nematoda
10. Name: Chicken, Phylum: Chordata
11. Name: Fish, Phylum: Chordata
12. Name: Human, Phylum: Chordata

Note: For #5, if your teacher expects a different name (like “Brittle Star”), you can adjust — but phylum remains Echinodermata.

For #12, since it’s a human arm, “Human” is appropriate.

This matches standard K-8 science curriculum as of 2026.