What is the name of the phylum for sponges?
Which animal is considered to be the most simplistic invertebrate, but is not a plant?
Sponges
What type of body symmetry do sponges and cnidarians have?
Sponges- Asymmetry/No symmetry
Cnidarians - Radial
Invertebrates do not have...
Backbones or spines
Sponges and cnidarians have no spines and are considered to be ___________.
Invertebrates
How do sponges feed?
Filter feeders
What are spicules made of?
Hard, rubbery material called spongin.
What specialized cells do sponges have which allow them to filter water that passes through their pores and get food from it?
Collar cells (choanocytes)
What percentage of animals invertebrates?
10%
95%
80%
Over 95%
What kind of body tissue can you find in cnidarians? (Name at least two)
Nervous, sensory, muscle, and digestive
What animals are included in the phylum Cnidarian?
Give any one of these :
Hydras, Jellyfish, Sea Anemones, and Corals
What is the common name for poriferans?
sponges
What are the small tails attached to collar cells that help move the water through sponges?
All invertebrates and vertebrates are in what KINGDOM?
Animalia
How do cnidarians hunt their prey?
They sting them with special cells that paralyze, stun, or kill them, and then catch them with their tentacles.
Where do cnidarians live?
Oceans, lakes, and ponds
What is the common name for cnidarians?
Jellyfish
What are the 2 body forms cnidarians can have?
Polyp & Medusa
Define endoskeleton
A skeleton we have on the inside of our bodies
A cnidarian has a blind gut, which is...
An organ that takes in food and expels waste, acting as both entrance and exit for material.
What phylum is the Portuguese Man of War in?
Cnidarians
How many layers of cells do sponges have?
Two
Define exoskeleton
A hard structure or skeleton on the outside of the body.
What is taxonomy and why is it useful?
It is the science of classifying organisms and it is useful because it helps us classify animals by similarities, understand animal relationships, and identify new species.