|
Animal
|
Respiration
|
Circulation
|
|
Porifera
|
diffusion
|
none
|
|
Cnidaria
|
diffusion
|
diffusion
|
|
Platyhelminthes
|
diffusion
|
diffusion
|
|
Nematoda
|
diffusion
|
diffusion
|
|
Annelida
|
diffusion through
skin
|
closed
circulatory system; five pairs of pumping
hearts
|
|
Gastropoda
|
aquatic: gills.
terrestrial: capillary network in mantle
|
open
circulation
|
|
Bivalvia
|
gills
|
open
circulation; pumping heart
|
|
Cephalopoda
|
gills
|
open
circulation; pumping heart
|
|
Echinodermata
|
skin
gills
|
none
|
|
Crustacea
|
gills aided by
movement of swimmerets
|
open
circulation; pumping heart
|
|
Arachnida
|
book
lungs
|
open
circulation; pumping heart
|
|
Insecta
|
spiracles leading to
tracheae
|
open
circulation; pumping heart
|
|
Chondrichthyes
|
gills;
lungs
|
two-chambered
heart; closed circulation
|
|
Osteichthyes
|
gills;
lungs
|
two-chambered
heart; closed circulation
|
|
Amphibia
|
skin;
lungs
|
three-chambered
heart; closed circulation
|
|
Reptilia
|
lungs (left lung
non-functional)
|
three-chambered
heart, partial septum in ventricle; closed
circulation
|
|
Aves
|
lungs; air
sacs
|
four-chambered
heart; closed circulation
|
|
Mammalia
|
trachea, bronchi,
lungs, alveoli
|
four-chambered
heart; closed circulation
|