Sponges and Jellies
Worms Worms Worms
Mollusk Mania
Echinoderms and Arthropods
General Invertebrate Info
100

What type of body symmetry do Sponges have?

Asymmetry 

100

These worms are characterized by their segmented bodies.

Annelids

100

Mollusks like oysters, clams and scallops have two shells which is the reason their order name is _______.

Bivalve

100
Echinoderms contain a skeleton that is under their outer layer of skin. What is this internal skeleton called?

Endoskeleton

100

Invertebrates can be defined as not having a...

Backbone

200

What is the phylum name for jellyfish?

Cnidarians

200

Platyhelminthes are the phyla name for flatworms which can be parasitic or free-living. Give me one type of a flatworm.

Planarians, Flukes, Tapeworms...

200

What is the order of mollusks that include octopus, squid, cuttlefish, and the chambered nautilus? 

Cephalopoda 

200

What order of arthropods includes crabs, lobsters, shrimp, and roly-polies.

Crustacea

200

When there is a distinct left and right side, this animal is considered to have ____________ symmetry

Bilateral Symmetry

300

Jellyfish have a simple body plan where they take in oxygen through their skin. What type of respiration is this called?

Diffusion

300

This phyla of worms are parasitic and have a smooth, round body.

Nematodes

300

Mollusks contain a special structure that helps with eating. Squid use this to drill into their prey while slugs and snails can scrape apart plants with this structure.

Radula

300

This order of Arthropods includes both centipedes an millipedes.

Myriapoda

300

Some invertebrates have a body cavity with only one opening that is used for eating and excreting waste. What is this called?

Gastrovascular Cavity

400

Sponges have special cells that help transport nutrients around the sponges bodies called...

Amoebocytes

400

Tube worms are often found near hydrothermal vents and form a symbiotic relationship with ____________ which helps deliver needed nutrients for the worms.

Bacteria

400

What made it difficult to capture a giant squid on camera?

Answers may vary...

400

How does the water vascular system of echinoderms like sea stars or sea cucumbers work?

Chambers are contracted in the arms moving sea water across the canals to the arms and tube feet.

400

Some invertebrates spend part of or all of their lives stationary, usually attaching to a rock or the ocean floor. What is a term used to describe this stationary and immobile state?

Sessile

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