Science Test (vertebrates)
Terms
undefined, object
copy deck
- mostly bilateral, 1/2 of vert, internal skeleton with a back bone
- fish
-
slits that allow gas exchange
02+water thru mouth n CO2+water thru gills - gills
- no mouth, jawless fish
- agnatha (lampreys and rays)
- have a cartilage
- chondrichthyes (sharks and rays)
- osteichthyes
- bony fish
- males and females, sexual, external fertilization, internal (sharks and rays)
- fish reproduction
-
"double life"
in land and water - amphibians (frogs, salamanders, newts, toads)
- body structure
- ecthotherms and metamorphosis
- body temperature changes with the surrounding
- ecthoterm
- develop and changes form
- metamorphosis
- reptiles body structure
-
ecthotherms
-must find shade in hear, dormant during cold - sexually, internal fert, amniotic egg (life support), lay egss ON LAND, provide no care for young
- reptiles reproduction
- nurse their young, mammory glands, endotherm
- mammals
- mammal body structure
-
*hair-for warmth and water proofing
*lungs
*teeth - canines
- puncture and ripflesh (carnivore)
- molars
- grinding plnats (herbivore)
- young carried in auterus, nourished by placenta
- placental
- young carried in a pouch for a 2nd incubation period
- marsupial (kangaroo, opossum)
- egg layers only 3 species
- monotremes (platypus, antraters) found only in Australia , Tasmania, New Guinea)