Oceans Test 1

Marine Invertebrates

Styela gibbsii-Acidiacea

Cnemidocarpa finmarkiensis-Acidiacea

Archistoma spp.-Acidiacea

Boltenia villosa-Acidiacea

Distaplia occidentalis-Acidiacea

Aplidium solidum-Acidiacea

Perophora annectons- Acidiacea

Leucilla nuttingi- porifera

what are the three classes of porifera?

Calcarea: leucilla nuttingi

Hexactinellida: Aphrocallistes vastus

Demospongiae: Haliclona bowerbanki, haliclona sp., Mycale adhaerens

Aphrocallistes vastus - porifera

Haliclona bowerbanki - porifera

Haliclona sp. - porifera

Mycale adhaerans - porifera

Bugula californica - Bryozoa

Bugula pacifica- Bryozoa

Hippothea hyaline - bryozoa

Schizoporella unicornis - Bryozoan

Bougainvillia spp. -Hydrozoa(Leptothecata)

Barentsia benedeni- Entroprocta

asexual polyp phase of scyphozoans

Identify a sponge (porifera)

-lumpy, tube like

-many tiny pores with a few large holes and random distribution

-no clear body organization

-no in vs out siphon

-porous maze inside

-no true tissues

Identify an ascidian(ascidacea)

-sack like individuals or smooth colonies

-two siphons (incurrent brachial, excurrent atrial)

-openings in patterns

-water in one siphon, out the other

-contracts if disturbed

-branching

-rubbery soft

Different components of benthic boundary layer

Top

Logarithmic layer

Viscous sublayer

diffusive sublayer

substrate

Bottom

Ability to switch between active and passive feeding in suspension feeders

facultatively passive

what are tentacles called on bryozoans

lophophores

after a bryozoan has settled and before it asexual reproduces to form a colony what is the stage called.

ancestrula

bryozoan defense mechanism

avicularia

what is unique about Phylum phoronida of the class bryozoans

-bilateral symmetry, organ reduction on right side

-paired lophophore(two sets of tentacles)

scyphozoa and hydrozoa are in what phylum

cnidaria

what are the three types of mechanisms that come out of the cenosarc

gastrozooid

dactylozooid

gonozooid

Name the three sub-phyla of chordates

Craniata

Cephalochordata (Lancelets)

Tunicata

Name the three classes of Tunicata

Thaliacea (salps)

Appendicularia (larvacean)

Ascidiacea (sea squirts)

Gill slits

Post anal tail

Dorsal nerve chord

Notichord

4 defining characteristics of chordata (ascidacea only have these in larval)

coating of a bryozoan

Perisarc

Two stages of Cnidaria reproduction

Polyp and Medusa