Fish
These fins allow them to move left & right.
Unpaired fins
The two important function of their skin.
Respiration & Protection
The name of people who study dinosaurs.
Paleontologist
Birds are endothermic or exothermic
Endothermic
Humans are order _____.
Primates
These fins create stability.
Unpaired fins
This type of circulation carries deoxygenated blood from the heart to the lungs back to the heart.
Pulmonary Circulation
The ability to detach their tail.
Autonomy
Featherless patch of skin on the abdomen used to warm the eggs.
Brood Patch
Mammals with hoofs.
Ungulates
Freshwater fish are hypertonic. Hypertonic meaning they
Gain water & lose ions
This type of circulation carries deoxygenated blood from the heart to the body and back to the heart.
Systemic Circulation
Hard protein that forms hair, bird feathers, nails, & horns.
Keratin
This type of offspring can feed, walk, and swim as soon as they are hatched.
Precocial offspring
Scientists who study humans.
Anthropologists
Saltwater fish are hypotonic meaning they
Gain ions & lose water
They have ___ chambered heart.
3
Order Chelonia includes _____.
Order Squamata includes _____>
Turtles & tortoises
Lizards & snakes
This type of offspring is born blind, naked, & helpless.
Altricial offspring
These teeth cut.
These teeth grip, puncture, & tear
Incisors.
Canines.
Operculum means
a hard plate that opens at the rear & covers & protects the gills
The tympanic membrane is the
eardrum
Order Rhynchocephalia includes _______.
Order Crocodilla includes ______.
Tuataras
Crocodiles, alligators, caimans
Biologist that studies birds.
Ornithologists
These teeth shear, shred, cut, or grind
These teeth grind, crush, or cut
Premolars.
Molars.