MAMMALS
what is the biggest whale
the blue whale
how many chambers are in the heart of am amphibian?
3 chambers
how do humans benefit from snakes?
they eat many rodents and bugs
how do birds reproduce?
internal fertilization
which structure in fishes makes it possible for fish to take in oxygen?
the gills
whale predators that sieve tiny crustaceans, small fish, and other tiny living organisms are called?
baleen whales
what kingdom & phylum do amphibians belong to?
kingdom: Animalia phylum:chordata
what is the snakes weakest sense?
sight
what kind of symmetry do birds have?
bilateral
what does the swim bladder do?
adjusts bouyancy
what are a pinnipeds limbs modified to do to help them survive?
loco- motion
what are the three major groups of amphibians?
frogs& toads, newts& salamanders, caecilians
what protects reptiles and keeps them from drying out?
their scales
what about a bird's bones makes it easy to fly?
they are light and hollow
what organ is affected if a fish is swimming around upside down at the top of the tank?
swim bladder
what 2 suborders are cetaceans divided into?
Odontoceti & Mysticeti
how does the mucous secretion from amphibians help them?
helps them absorb oxygen and keeps their skin moist
what special adaptation do snakes have for eating large prey?
they dislocate their jaw
what helps birds stay clean and dry?
their oil glands
describe cartilage fish reproduction?
internal fertilization and slow development
what are the 6 main characteristics of a mammal?
pregnancies, no egg, hair/fur, 4 chamber heart, warm blooded, mammary glands
what are the 6 different families?
pelobatidae, halide, leptodortylidae, microhylidae, bufonidae, ranidae
how long does a turtle hatchling stay in its nest on its own for?
90-120 days
birds that can see two different object at the same time have what kind of vision?
monocular
what type of scales are present in cartilagenous fish?
placoid