Classification
The three categories of ectothermic vertebrates.
Fish, reptiles, and amphibians
The jellyfish and sea anemone are classified as ________________, although they have different body shapes.
What is cnidarians?
Word that means cold-blooded.
Ectothermic.
The class that means "head foot"
What are cephalopods?
The phylum of animals with shells, antennae, and soft bodies.
What are mollusks?
The two classes of endothermic vertebrates
What are birds and mammal?
The animals in these two phyla exhibit radial symmetry.
What are cnidarians and echinoderms?
Means warm-blooded.
What is endothermic?
The phylum of porous invertebrates that filter water for nutrients.
What are poriferans?
The class of one-shelled mollusks.
What are gastropods?
The vast majority of animals living in the world are classified as _______________.
What are invertebrates?
amphibians. water
Most arthropods have an ____________ on the outside that protects them.
What is an exoskeleton?
What are crustaceans?
The phylum that has stinging cells such as the jellyfish.
What are cnidarians?
The eight levels of classification
Domain, kingdom, phylum, class order, family, genus, species
The protein that makes up bird feathers.
What is keratin?
Arachnids have ___ legs and ___ body segments.
Insects have ___ legs and ___ body segments.
8,2
6,3
The phylum with radial symmetry, tube feet, and spiny skin.
What are echinoderms?
The three types of worms
Platyhelminthes (flatworms)
Nematode (round worms)
Annelid (segmented worms)
Characteristics of mammals
body hair
three middle ear bones
females able to produce milk to feed young