Outline for Zoology-Invertebrates (5) & Review

Echinodermata

starfish, sea urchins, sand dollars, & sea cucumbers; deuterostome coelomates; regeneration of body parts

Larvae in echinodermata have

bilateral symmetry

Adults in echinodermata have

pentaradial (five) symmetry

Digestive tract in echinodermata

Complete; coelom

Endoskeleton in echinodermata

calcium carbonate

Starfish

carnivores; takes in food by ejecting stomach around prey

Sea urchins

herbivores/scavengers

Sand dollars

herbivores

Sea cucumbers

radial symmetry in adulthood; no arms & no spines; tube feet

Oral side of starfish

mouth & retracted/extended tube feet

Madreporite

off-centered circle in starfish that opens & starts the water vascular system

Water-vascular system

unique to echinodermata; used in circulation, digestion, movement, & respiration

Picture of sandworm

shallow marine water buried down & are freeliving

Picture of snails

univalves; some are carnivores

Picture of chiton

takes a pocket knife to dislodge; eats algae but does not have radula

Cells on porifera

flagellated for water to bring in nutrients

Movements of porifera & barnacles

sessile; attached to a substrate (floor, rocks, etc.)

What is the staghorn coral suffering from?

global climate change

Digestive tract in platyhelminthes

incomplete with only one opening

Tapeworm uses

diffusion; can be up to 18 feet long

Bivalves

filter feeders or detritivores

Probosis

coiled tongue in butterflies & moths

Wings in flies

two wings/one pair

Spiracles

tracheae openings in arthropoda (crustaceans)

What phylum molt a cuticle?

nematoda & arthropoda