Vertebrates Flashcards
all vertebrates belong to which phylum?
chordata
what 3 things do vertebrates have?
a vertabrae(backbone), a endoskeleton, and a cranium
name the 5 classes of vertebrates
fish, amphibians, reptiles, birds, mammals
what are fish?
it is a very large group of vertebrates
name the 3 groups of fish
lamphreys and hagfish, sharks-rays-and skates, bony
lamphreys and hagfish
fish that have eel like bodies and no jaws
sharks, rays, and skates
fish that have jaws and are covered with a unique kind of scale
bony fish
the ones we are familiar with, they have jaws- salmon, bass, catfish
why does amphibians mean “double life”
because they spend half their life on land and half their life in water
describe the physical characteristics of amphibians.
have moist, thick skin with no scales. have webbed feet without claws
they(amphibians) use in water and on land
gills, lungs
what helps amphibians breathe?
their skin
they start out their life in a ( ) stage to a ( ) land adult form
larvae, terrestrial
how do they reproduce and lay eggs?
they reproduce externally and lay their eggs in moist places
name some amphibians
frogs, toads, salamanders
what are reptiles?
they are the most diverse group of vertebrates
give some physical characteristics of reptiles.
dry and scaly skin, breathe through lungs, cold blooded
how do they(reptiles) fertilize?
internally
name some reptiles
snakes, turtles, crocodiles, alligators, lizards
names some things about birds
most can fly, most have feathers, have wings, have beaks, lay eggs
what type of bones do birds have and why?
hollow bones which makes flying easier
whats special about birds
they have a body temp of about 104-106 which gives them a high metabolism thus providing them with tons of energy
how are mammals blooded?
they are warm blooded
how do mammals produce body heat?
through metabolism
how are mammals hearts built
in atriums and ventricles, they are four chambered
how are mammals jaws built?
lower jaw is one single jaw, have different teeth with different functions
explain why female mammals produce milk
it is produced in the mammary glands and fed to young
tell me the three groups mammals are divided in to
monotremes, marsupials, and placental
why are monotremes unique?
because they are egg laying
name the two monotermes
platypus and spiny anteater
how do marsupials give birth?
vivporous, which means gives to live young
what is the only marsupial found in the us?
virginia opossum
name some marsupials
kangaroo, koala, wombats, and tasmanian devils
placental mammals explain fully
its the majority of all mammals, young are nourished through placenta, us humans belong here
