multicelluar, eukaryotic, heterotrophs, lack cell walls
arrangement of an organism's body parts so that if a line was drawn down the middle, the body's parts would repeat on either side
lack mouth, anus and gut
concentration of sensory organs and nerve cells at the head of an animal's body
embryonic tissue for epidermis
what are spongeons/spiracles made out of?
embryonic tissue for gastrodermis
pharnyx, brain, muscles
muscular tube-like structure located at the back of the mouth that connects the mouth with the rest of the digestive tract
spongeon or spicules
porifera: what is the endoskeleton made of?
planaria(platyhelminthyes) have a(n) _________ digestive system
characteristics of roundworms (nematoda)
tube within a tube
nematode body plan
A fluid-containing space between the digestive tract and the body wall. (protects organs) (growth and expansion)
soft body, radula, muscular foot
mollusks use the ________ to scrape and grind their food
aquatic animal that feeds by straining tiny floating plants and animals from the water around it
what is the function of the muscular foot?
structure in mollusks that contain internal organs
thin, delicate area of tissue that covers most of a mollusk's body and secretes the shell when one is present
arthropods have a(n) ___________ circulatory system
a circulatory system in which the circulitory fluid is not contained entirely in blood vessels
blood circulates entirely within blood vessels that extend throughout the body
complex carbohydrate found in arthropod exoskeleton's and fungal cell walls
insects breathe through ________
arthropods have a(n) __________ digestive system
uric acid crystals
undigested waste and ________ _________ _______ is eliminated
egg, larva, pupa, adult
egg, nymph, adult
size, reproductive organs, wings
differences between immature and adult in incomplete metamorphosis
have true tissues, tentacles and gastrovascular cavity
cnidarians have a(n) _________ digestive system
what do cnidarians catch their pray with?
cnidarians: food is broken down ________
process in which food is broken down outside the cells
process in which food is broken down inside the cells
platyheldminthes have a ________ body plan
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