Fishes
The two major groups of fishes.
What are cartilaginous fish and bony fish?
Frog eggs are laid in water and undergo this type of fertilization.
What is external?
Often called the Age of Reptiles.
What is the Mesozoic Era?
Two main types of feathers
What are contour and down?
Having specialized teeth allows mammals to do this
What is eat a variety of foods?
The internal, gas filled organ that adjusts a fish's bouyancy.
What is a swim bladder?
Responsible for allowing wastes, urine, and eggs or sperm to leave the body.
What is the cloaca?
Characteristic of reptiles that allow them to live their entire lives out of water.
What is dry/scaly skin?
What are lungs?
What are terrestrial eggs with several membranes?
The purpose of feathers
What is flight and warmth?
The main characteristics of mammals.
What is live birth/mammary glands?
What is hair/fur?
What are lungs?
What is endothermic?
What are paired fins, gills, and scales?
This adaptation keeps amphibians from drying out on land.
What is moist skin with mucous glands?
What are ectotherms?
Although the origin of birds is not completely resolved, paleontologists believe that birds came from this ancestor.
What are extinct reptiles?
Respiration in mammals involves these things.
What is inhaling and exhaling using lungs and diaphragm?
There are two modern jawless fish. Name one.
What are hagfish/lampreys?
The reason behind amphibians having a "double life."
What is their larval stage is in water and their adult stage is on land?
One of the most important adaptations to life on land; consists of four membranes that protect and nourish the embryo.
What is the amniotic egg?
Animals that generate their own body heat
What are endotherms?
The purpose of having a backbone.
What is protection of spinal cord, movement, and provides support for the body?
The evolution of jaws was extremely important for this reason.
What is eating more foods and biting (defensively)?
The transition from water to land required that the terrestrial vertebrates had to do these things.
What is breathe air?
What is protect self and eggs from drying out?
What is support self against gravity?
The four groups of reptiles.
What are lizards and snakes?
What are crocodilians?
What are turtles and tortoises?
What are tuataras?
What are feathers and wings?
What are highly efficient bodily systems?
What are strong, lightweight bones?
What are strong chest muscles?
The three components of mammals' highly developed brains
What is cerebrum?
What is cerebellum?
What is medulla oblongata?