pgs 14-15
About what percent of animals alive today make up invertebrates?
97%
Name two classes of endothermic vertebrates.
mammal
birds
What do most arthropods have on the outside to protect them?
exoskeleton
what phylum do sponges belong to?
porifera
what are two elements that determine a biome?
temperature
amount of rainfall
Yes, we have the beginning of a backbone.
what is the main component of feathers?
keratin
Name the largest phylum of invertebrates?
arthropods
what is the major characteristic of cnidarians?
sting
name six major land biomes.
arctic
taiga
temperate forest
grassland
tropical forest
mountains
What are the five main categories of vertebrates?
birds
mammals
reptiles
amphibians
fish
what are three common amphibians?
frog
toad
salamander
Name three classes of mollusks and give an example of each.
gastropod- slug
cephalopod- squid
bivalve- clam
What are two basic shapes of cnidarians?
medusa
polyp
List the eight levels of classifications.
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
what is the difference between endothermic and ectothermic?
warmblooded
coldblooded
Name two differences between arachnids and insects.
insects have six legs
name and describe the three phyla of worms.
platyhelminths- flat
annelid- segmented
nematode- round
Name three categories of ectothermic vertebrates.
reptiles
amphibians
fish
Name the eight major phyla of invertabrates.
cnidarian
echinoderm
platyhelminthes
annelid
mollusk
nematode
porifera
Name two differences between frogs and toads?
Frogs are more aquatic.
Toads are more terrestrial.
What are four characteristics of echinoderms?
spiny skin
live in marine habitats
water-filled chambers
feed on worms, mollusks, corals, sponges, crustaceans, and fish
name an example of each shape of cnidarian.
bowl-shaped
can shaped
What are three characteristics that mammals have in common?
three middle ear bones
produce milk
live babies