Hard, spine-like structures that form the sponge's framework of support.
What are spicules?
100
Jellyfishes, hydra, anemone, and corals.
What animals belong to the phylum Cnidarian?
100
Flatworms, Roundworms, and Segmented worms
What are the 3 distinct worm phyla?
200
Invertebrates don't have a backbone, and vertebrates do.
What is the difference between invertebrates and vertebrates.
200
A flexible substance that forms a network between the cells and provides support for the bodies of some sponges.
What is spongin?
200
A bell shaped body designed for swimming, with a mouth pointing down and surrounded by tentacles.
Describe the Medusa body form.
200
Hookworms. They belong to the phylum Nematoda.
What kind of worm enters humans through the soles of the feet and what phylum does it belong to?
300
A type of body symmetry characterized as having two matching sides: right and left.
What is bilateral symmetry?
300
The ability to regrow lost or damaged body parts.
What is regeneration?
300
A vase shaped body designed to be attached to something, with an upward pointing mouth, also surrounded by tentacles.
Describe the Polyp body form.
300
The Trichina Worm
What type of worm causes the disease Trichinosis?
400
A type of symmetry in which an organism's body parts are arranged around a central axis.
What is radial symmetry?
400
-they have a hollow body
-their cells aren't specialized in tissue
-water and materials move into the body through pores
-water moves out of the body through a large opening at the top of the sponge.
What are the main characteristics of sponges?
400
By grabbing it with their tentacles, then injecting a harpoon-like stinging cell that paralyzes the prey.
How do most Cnidarians capture their prey?
400
The Flatworm
What kind of worm has a flat body, distinct head, and tail?
500
Sponges, Cnidarians, Roundworms, Flatworms, Segmented worms, Echinoderms, Mollusks, and Arthropods.
What are the 8 common invertebrate phyla?
500
The central cavity, central opening, pores, and collar cells.
What parts make up structures of a sponge?
500
They have hollow, sac-like bodies that occur in two forms, a Medusa and a Polyp. They have only one opening into the body. Their cells are specialized into tissues, and they have tentacles with stinging cells.
What are some main characteristic of Cnidarians?
500
A tapeworm.
What is an example of an internal parasite that is a Flatworm?