Show:
Classifying Invertebrates
Sponges and Stinging-Cell Animals
Worms
Mollusks and Spiny-Skinned Animals
Anthropods
100
This animal is an invertebrate that lives in the ocean. The tentacles help this invertebrate catch food.
What is a jellyfish?
100
This is what gives sponges its shape.
What is needlelike parts?
100
Tapeworms are considered a flatworm. They cannot digest food so they live inside the ____________ of the host.
What are the intestines?
100
This is a fleshy covering that both clams and squids have.
What is a mantle?
100
These anthropods have bodies that are divided into a head, a thorax, and an abdomen.
What is an insect?
200
This is why scientists classify animals into groups.
What is making it easier to study them?
200
This is the part of a jellyfish that contains the stinging cells.
What are the tentacles?
200
This worm's body is divided into sections and is different from the other two types of worms.
What are segmented worms?
200
Sponges and echinoderms have this in common.
What is they both live in salt water?
200
This is why an anthropod must molt.
What is to grow?
300
This is what all invertebrates have in common.
What is no backbone?
300
This is how sea water that contains food enters a sponge's body.
What are pores?
300
Most flatworms and roundworms are this.
What are parasites?
300
This is the function of the mantle in mollusks.
What is protecting the organs?
300
This animal is a member of the largest major group of animals.
What is a grasshopper?
400
A bee, jellyfish, and worm.
What are invertebrates?
400
This is a function of a jellyfish's stinging cells.
What is to help the animal catch food?
400
This type of worm has two body openings and is round.
What are roundworms?
400
This is the a trait of most mollusks.
What is a body with three parts?
400
This is a function of the exoskeleton.
What is preventing water loss or protecting organs?
500
This is the percent of invertebrates on the earth.
What is 97%?
500
An anemone cannot move quickly. How is it protected from an animal that is trying to eat it?
What are poison threads inside the tentacles?
500
This trait is shared by planaria and sea stars.
What is the ability to regrow missing parts?
500
These things help sea stars feed by pulling open the shells of clams.
What are tube feet?
500
True or False? An anthropod's exoskeleton is used for detecting air movement.
What is FALSE?