BASIC INVERTEBRATE GROUPS
[Daily Double] Poriferans are animals like sponges with bodies full of ________.
Pores
What animal filters food from water and has no true tissues?
Sponge
What hard outer covering protects arthropods?
Exoskeleton
[Daily Double] What stinging cells do cnidarians have?
Cnidocytes
[Deduct 200] What do we call worms with flat bodies?
Platyhelminthes
What group includes insects, spiders, and crabs?
Arthropods
What animal filters food from water and has no true tissues?
Pores
What process lets arthropods grow by losing the exoskeleton?
Moulting
What is the fixed body form of cnidarians called?
Spell to deduct 100 points.
Polyp
What do we call roundworms?
Nematodes
What group includes jellyfish, corals, and anemones?
Spell to deduct 100 points.
Cnidarians
What is the large opening where water leaves a sponge?
Osculum
[Daily Double] What do we call legs, claws, or antennae in arthropods?
Appendages
What free-swimming cnidarian has a bell shape?
Jellyfish
What ability lets animals regrow lost parts?
Regeneration
What group includes earthworms and leeches?
Annelids
What special cells help sponges move water and catch food?
Spell to deduct 100 points.
Choanocytes
What body part is the head + thorax together?
Spell for extra 100 points.
Cephalothorax
What type of symmetry do jellyfish have?
Radial symmetry
What mollusks have two shells?
Bivalves
What group includes snails, clams, and octopus?
Mollusks
What tiny hard structures give sponges support?
Spicules
What two body parts do insects have besides the head?
What internal cavity is used for digestion in cnidarians?
Gastrovascular cavity
What tongue-like structure do snails use to scrape food?
Radula