characteristics used to classify animals
a property of an animal that means it can be divided into mirror images
What is symmetry?
three things all vertebrate have
What are backbones, endoskeletons, and skulls?
the meaning of invertebrate
What is having no backbone?
fish are grouped in these three ways
What are jawless, cartilaginous, and bony fish?
Two main characteristics of mammals
What are hair and milk production?
jellyfish have this type of symmetry
What is radial symmetry?
an invertebrate without symmetry, cephalization, or guts
What is a sponge?
meaning pore-bearer
What is a sponge?
lampreys and hagfish
What are jawless fish?
mammals that do not develop placenta and raise young in pouches
What are marsupials?
this term means an animal can regulate its body temperature
What is an endotherm?
invertebrates that rely on hard shells for protection
What are molusks?
chelicera
What is a type of mouthpart?
a unique character of amphibian skin
What is the ability to exchange oxygen and carbon dioxide?
attaches the embryo to the placenta
What is the umbilical chord?
What are Chordates?
the only invertebrate that can fly
What is an insect?
has two body segments and eight legs
What are chelicerates or arachnids?
Crocodilians do not share this trait with other reptiles
What is having a three chambered heart?
mammals that lay eggs
What is a monotreme?
aside from being eukaryotes all animals have this in common
What is a consumer?
the reason squids are not considered vertebrates
What are endoskeleton lacking vertebrae and not made of living cells
What are worms?
three differences between snakes and lizards
What are the presence of legs, ear openings, and moveable eyelids?
comes from the Hebrew word meaning 'created kind'
What is baraminology?