Classification of vertebrates Flashcards
Linnean vs Cladistic classification system
linnean is the base for modern classification and is based on similar features. Cladistic is based on shared traits
Class amphibians include
Frogs, salamanders and caecilians
amphibians have _____ slits lost during metamorphosis
gill
amphibians have ____ skin that is sensitive to desiccation
thin
amphibians have _____ glands
mucus
amphibians have _____ glands that deter predators
poison ( granular)
amphibians are
ectothermic
amphibians have eggs that
lack shells and amnionic membranes
amphibians eggs are deposited
in water or moist environments
frogs have _____ fertilization
external
salamanders and caecilians have ____ fertilization
internal
amphibians typically have
four legs
amphibians have no ____
scales
amphibians have _______ chambered hearts
three
Frogs loose _____ during metamorphosis
tail
frogs have ______ respiration
cutaneous
frogs have no
diaphragm
salamanders retail their
tails
salamanders may retain
gills and have lungs regenerate
extraembryonic membranes
enclose embryos
amniotes have ____ or _____ shells
calcareous ; leathery
sauropsids
amniotes that are birds or reptiles
synapsida
amniotes that are mammals
reptiles have ______ skeleton
ossified
reptiles have ______ scales
epidermal
many reptiles are
polyphydonts
reptiles have a true _______ cortex
cerebral
reptiles have ___ middle auditory ossicles
1
repitles have _____ girdles
pelvic (snake is an exception)
reptiles have a minimum __ chambered heart
3
reptile eggs can survive on
land
reptiles have 4 extraembryonic chambers
Amnion, chorion, allantois, and yolk sac
turtles have
carapace and plastron
lizards have teeth but no
fangs
snakes have teeth and sometimes
fangs
birds have 6 types of feathers
flight feathers, contour feathers, down feathers, semiplumes, filoplumes, and bristle feathers
aves are
endothermic
aves have _____ eggs
amnionic
aves eggs are
calcareous shells
aves have a ____ chambered heart
four
aves have no
teeth
many aves have
crop storage, proventriculus, and a gizzard
aves have a
cloaca
The cloaca is a opening used for
digestive, urinary, and reproduction systems
monotremes have ______, they _____ and are ______
hair, lactate and are endothermic
monotremes lack _____, ______, and _____
nipples, external ears, and a placenta
monotremes have
shelled eggs
like aves monotremes have a
cloaca
marsupials have a
abdominal pouch and rarely have a placenta
Eutherians have
placentas, hair, sweat gland, sebaceous glands, scent glands, mammary glands, muscular diaphragm
monotreme examples
platypus, spiny anteaters
Marsupialia examples
koala, kangaroo
Proboscidea examples
elephants
primate examples
monkeys
rodentia examples
rats mice capybara
lagomorpha examples
rabbits
Chiroptera examples
bats
carnivora examples
cats, dogs, racoons, weasels, and more
Ungulates have three sub orders
perissodactyla (odd toes) , artiodactyla (even toes), and catacea (fish like)
Perissodactyla examples
rhinos, horses etc
Artiodactyla examples
pigs, deer etc.
cetacea examples
whales and dolphins