Characteristics
A crab has ______ symmetry
Bilateral
Baraminology
Invertebrates have this instead of a backbone
Exoskeleton
Percentage of Chordata that are vertebrates
97%
Amphibians
A starfish has _______ Symmetry
Radial
Endotherms
Stinging cells are called
cnidocytes
How many groups of mammals are there?
Three
Largest group of vertebrates
Fish
Are tube sponges symmetrical?
No
Ectotherms
depend on surroundings for internal body temperature
Largest class of arthropods
Insects
Egg laying mammals are called ________
Monotremes
Two differences between a crocodile and an alligator
Head shape and teeth
What is the difference between a complete gut and an incomplete gut?
Complete Guts have two holes
Incomplete Guts have 1
Chordates
have a notochord or spinal chord
Echinoderm means
Spiny Skin
Two characteristics of mammals
Have hair and produce milk
How many shells do turtles have?
Two
What is the percentage of invertebrates in the animal kingdom?
95%
Man who discovered classification
Carolus Linneas
How many legs do crustaceans have
8-10
How many bird species are there?
Term that means "shedding skin"
Molting