BSC2011 CHAPTER 28

this class is my worst enemy

what are invertebrates?

animals without a spine and cranium

how many phyla of invertebrates?

eight

what kind of tissues do Porifera have?

no “real tissue”, not homologous to other animals

body plan of Porifera

asymmetrical

are Porifera proteosome or deuterostome?

neither (no gastrulation)

what body systems do sponges (porifera) have?

none

reproduction of porifera?

sexual and asexual

what is the body plan of Cnidaria?

Radial or biradial symmetry

are Cnidaria diploblastic or triploblastic?

diploblastic

do Cnidaria have a complete digestive system?

no

what kind of animals are Cnidaria?

marine animalsde

defining characteristic of Cnidaria?

cnidocyte, protection against preds

body type of Cnidaria?

polyp and medusa

movement of polyp

sessile (think coral)mo

movement of medusa

motile (they move)

do Cnidaria have body systems?

no, but have specialized tissues

do Cnidaria have a complete digestive system?

no, but have mouth and anus

how do cnidaria digest food?

gastrovascular cavity

how many classes of Cnidaria?

four

what are the classes of Cnidaria?

Anthozoa, Scyphozoa, Cubozoa, Hydrozoa

Hydrozoa

Sessile and medusa species (hydra, portuguese man o’ war)

Anthozoa

sessile polyp (coral, sea fans)

Scyphozoa

medusa species (jellyfish)

Cubozoa

medusa, box jellies

what is Platyhelminthes body type?

bilateral

do Platyhelminthes have a complete digestive system?

no

are Platyhelminthes protostomes or deuterostomes?

protostomes

do Platyhelminthes have a mouth and anus

its the same damn thing

what are the two body systems that Platyhelminthes do have?

excretory and nervous systems

production of Platyhelminthes

monoecious, lays eggs

what is the body plan of the mollusca?

bilateral with cephalizatino

what kind of tissues does the mollusca have?

triploblastic + eucolomate

do mollusca have a complete digestive system?

yes, protostome

what do all species in the mollusca phyla have?

muscular foot, main body, mantlewh

what species in the mollusca have a smaller mantle?

squid + octopus

what are the classes of mollusca?

bivalvia, gatropoda, cephlopoda

what body systems do mollusca have?

respiratory, digestive (complete), circulatory

what does a complete digestive system mean?

food goes in mouth and out anus (seperate)

bivalvia reproduction?

sexual, produces larvae

bivalia respiration type?

gills

what kind of shell do bivalvia have?

two part shell (think clam)

what kind of circulatory system do bavalvia have?

no blood vessels or veins, open

are gastropoda just marine?

no, has terrestial species too

do all gastropda have shells?

no

do gastropoda have cephalization?

yes, true head eyes and tentacles

are bivalvia cephlized?

no, some have eye spots

gastropoda reproduction?

sexual, produces eggs no larval stage

do all cephalopoda have shells?

yes, but some internal

what are cephalopoda in the life cycle

carnivorous preds

are cephalopoda cephlized?

yes, true ceph

what class in mollusca has a closed cirulatory system?

cephalopoda

cephalopoda respiratory system

well-formed gills with a heart on each (two)

cephalopoda reproduction?

sexual, produces eggs with no larval stage

what do mollusca use for waste release?

nephridia

what is the body plan of annelida?

bilateral

what kind of tissues do annelida have?

triploblastic

are annnelida p or d

protostome (complete)

what is the name of marine annelida?

polychaetes

what is the name of terrestrail annelida?

oligochaetes

what kind of circulatory system do annelida have?

closed

reproduction of annelida?

can be sexual or asexual (only poly)

are annelida mono or diecious

both

what is the body plan of nematoda

bilateral

nematoda tissues?

triploblastic + psuedo

do nematoda have complete digestive system?

yes

defining charactistic of nematoda?

cutcile exoskele, which molts (gross)

what systems do nematoda not have?

circulatory, respiratory and excretory

reproduction of nematoda?

ALLL

what phyla has most species?

ARTHOPODAAA

body plan of arthropoda?

bilateral

tissues of arthopoda?

triploblastic

type of digestive system for arthopoda?

complete digestive system, protostome

reproduction of arthopoda?

most are diecious, sexual

can arthopoda be moecious?

yes, reproduce parthenogenetically

subphyla trilobita

all extinct

subphyla chelicerata

horseshoe crab, spiders, mites, ticks

subphyla myriapoda

milipedes, centipedes

subphyla crustacea

shrimp, krill, crabs, wood licesub

subphyla hexapoda

insects, some have metamorphosis

what kind of digestive system do hexapoda have?

well developed

what subphyla have multiple hearts?

hexapoda

what phyla is exclusively marine?

echinodemata

body plan of larval echinodermata

bilateral

adult echinodermata body plan

radial

tissues of echinodermata

triploblastic

echinodermata p or d

deuterstoomes

examples of echinodermata

sea cucumbers, sand dollars, sea stars

echindermata nervous system?

simple, no brain

respiratory system of echinodermata?

water vascular system

circulatory system of echinodermata?

hemal (removes metabolic wase)

where is echinodermata mouth?

ventral sidewhw

where is echinodermata anus?

dorsal side

echinodermata reproduction?

dioecious, bilateral larval stage

what animals are in asteroidea class?

sea stars

what animals are in ophuridi class?

brittle stars

what animals are in echinoidea class?

sand dollars

what animals are in crinoidea class?

sea feathers and sea lilies

what are in holothuridea class?

sea cucumber