Problem Overview:
The worksheet is divided into two main sections:
1.
Identifying the Phylum of Invertebrates: Match each invertebrate with its correct phylum.
2.
Identifying the Odd One Out: Circle the animal that does not belong in each class (insects, crustaceans, arachnids).
---
Section 1: Identifying the Phylum of Invertebrates
#### Key Phyla to Remember:
-
Cnidaria: Animals like jellyfish, sea anemones, and corals.
-
Echinodermata: Animals like starfish, sea urchins, and brittle stars.
-
Porifera: Sponges.
-
Mollusca: Animals like octopuses, scallops, and snails.
-
Arthropoda: Animals like insects, spiders, ticks, and crabs.
-
Annelida: Segmented worms like leeches.
#### Matching the Invertebrates:
1.
Brittle Star:
- Belongs to
Echinodermata.
- Correct answer:
echinoderm.
2.
Flea:
- Belongs to
Arthropoda.
- Correct answer:
arthropod.
3.
Sea Anemone:
- Belongs to
Cnidaria.
- Correct answer:
cnidarian.
4.
Sea Sponge:
- Belongs to
Porifera.
- Correct answer:
porifera.
5.
Scallop:
- Belongs to
Mollusca.
- Correct answer:
mollusk.
6.
Leech:
- Belongs to
Annelida.
- Correct answer:
worm.
7.
Sea Urchin:
- Belongs to
Echinodermata.
- Correct answer:
echinoderm.
8.
Tapeworm:
- Belongs to
Platyhelminthes (flatworms), but the options provided are incorrect. The closest option is
worm.
- Correct answer:
worm.
9.
Coral:
- Belongs to
Cnidaria.
- Correct answer:
cnidarian.
10.
Sea Sponge:
- Belongs to
Porifera.
- Correct answer:
porifera.
11.
Tick:
- Belongs to
Arthropoda.
- Correct answer:
arthropod.
12.
Octopus:
- Belongs to
Mollusca.
- Correct answer:
mollusk.
---
Section 2: Identifying the Odd One Out
#### Instructions:
Circle the animal that does not belong in each class.
#### Class 1: Insects
-
Bumblebee: Insect.
-
Earwig: Insect.
-
Scorpion: Arachnid (not an insect).
-
Potato Bug: Insect.
Odd one out:
Scorpion.
#### Class 2: Crustaceans
-
Kissing Bug: Not a crustacean (it's an insect).
-
Hermit Crab: Crustacean.
-
Crab: Crustacean.
-
Shrimp: Crustacean.
Odd one out:
Kissing Bug.
#### Class 3: Arachnids
-
Black Widow: Arachnid.
-
Tick: Arachnid.
-
Cave Spider: Arachnid.
-
Termite: Insect (not an arachnid).
Odd one out:
Termite.
---
Final Answers:
1.
Brittle Star: echinoderm
2.
Flea: arthropod
3.
Sea Anemone: cnidarian
4.
Sea Sponge: porifera
5.
Scallop: mollusk
6.
Leech: worm
7.
Sea Urchin: echinoderm
8.
Tapeworm: worm
9.
Coral: cnidarian
10.
Sea Sponge: porifera
11.
Tick: arthropod
12.
Octopus: mollusk
Odd One Out:
- Insects:
Scorpion
- Crustaceans:
Kissing Bug
- Arachnids:
Termite
---
Final Answer Box:
\[
\boxed{
\text{Brittle Star: echinoderm, Flea: arthropod, Sea Anemone: cnidarian, Sea Sponge: porifera, Scallop: mollusk, Leech: worm, Sea Urchin: echinoderm, Tapeworm: worm, Coral: cnidarian, Sea Sponge: porifera, Tick: arthropod, Octopus: mollusk}
}
\]
\[
\boxed{\text{Insects: Scorpion, Crustaceans: Kissing Bug, Arachnids: Termite}}
\]
Parent Tip: Review the logic above to help your child master the concept of invertebrates worksheet.
