Question

TABLE 19.1 Summary Table of Animal Characteristics Tissue Type of Digestive Symmetry Organization Body Cavity Openings Animal Circulatory System Habitat Respiratory Organs Sponge Hydra Planarian Clamworm earthworm Roundworm Crayfish Grasshopper Sea star Lancelet

Answer 1

Animal	Symmetry	Tissue organization	Type of Body cavity	Digestive opening	Circulatory system	Habitat	Respiratory organs
Sponge	Asymmetrical	none	spongocoel	osculum	choanocytes	aquatic	none
Hydra	Radial	diploblastic	gastrovascular cavity	mouth	none	aquatic	none
Planarian	Bilateral	Triploblastic	acoelomate	mouth	none	aquatic	none
Clam	Bilateral	Triploblastic	coelom (pericardial)	mouth, rectum	open	aquatic	gills
Clamworm / earthworm	Bilateral	Triploblastic	coelom	mouth, rectum	closed (heart, blood vessels)	moist soil	moist skin
roundworm	Bilateral	Triploblastic	Pseudocoelom	mouth, rectum	none	various	none
Crayfish	Bilateral	Triploblastic	coelom (pericardium)	mouth, rectum	open	aquatic	gills
Grasshopper	Bilateral	Triploblastic	coelom (hemocoel)	mouth, rectum	open	terrestrial	spiracles, trachea
Seastar	Bilateral (larvae) Radial (adult)	Triploblastic	coelom	mouth, rectum	open	marine	skin gills (dermal branchiae)
Lancelet	Bilateral	Triploblastic	coelom	mouth, rectum	closed (arteries, capillaries, veins)	marine	skin gills
Pig	Bilateral	Triploblastic	coelom	mouth, rectum	closed (heart, arteries, veins)	terrestrial	lungs, diaphragm