Ch_33_Invertebrates_Part_1 Flashcards
Phylum Porifera common term
The Sponges
number of marine species in Porifera
7000
Porifera have _ adults and _ larvae
Sessile and Swimming
Sponge 3 layers
Outer Epidermis, Mesohyl, Spongocoel
How does water enter and exit Sponge Outer Epidermis
enters incurrent Ostia and exits through Osculum
what is the Mesohyl
middle layer that consists of gelatinous matrix
What does the Mesohyl gelatinous layer have?
spongin, spicules, and amoebocytes
Inner layer of Sponge
Spongocoel
Spongocoel is lined with _ to _ water
choanocytes, circulate
Sponge cell types
collar cells, amoebocytes
What are Sponge collar cells and what do they do?
flagellated choanocytes, circulate water
What do Sponge Amoebocytes do?
move with pseudopods, clean pores, secrete spongin and spicules
Sponge body forms
Asconoid, Syconoid, Leuconoid
3 type of sponges
glass, chalk, commercial
glass sponge
spicules and spongin made of silica, provide support
chalk sponge
spicules and spongin made of calcium carbonate
commercial sponges
spongin only, no spicules
sponge spicules types
calcareous, Hexactinellida, Domespongiae, spongin
3 types of Phylum Cnidaria animals
jellyfish, corals, hydrozoans
Cnidaria defining characteristic
nematocytes (cnidocytes), sting prey
Cnidaria 2 tissue layers and seperating part
outer epithelium, inner epithelium, mesoglea
2 types of Cnidaria bodies
Medusa and Polyp
Cnidaria body structure parts
tentacles, nerve net, 2 tissue layers, stinging cells (nematocytes), mesoglea
nematocysts definiton
specialized organelles in nematocytes (cnidocytes) to sting prey
Classes of Phylum Cnidaria
hydrozoa, schphozoa, cubozoa, anthozoa
Class Hydrozoa forms
medusa and Polyp
Class Schphozoa forms
Medusa prominent
Class Cubuzoa forms
Medusa prominent
Class Anthozoa forms
Polyp only
Hydra is a _ water animal
fresh
Hydra has a mobile _ body
polyp
Number of Hydra tissue layers
2
What does a hydra use the Epidermis for
catch food with cnidocytes
What does a hydra use Endordermis for
digestion
What is the hydra mesoglea
middle layer with gellatinous liquid
Hydra sperm created in _ and eggs created in _
tests, ovaries
Hydra are _phroditic
Hermaphroditic
Hermaphroditic definition
male and female on same body
Planula larvae comes from _
Fertilized Hydra zygote
Zooplankton
part of Hydra sexual reproduction? need to look this up
Hydra asexually reproduce through _
budding
Physalia is part of class _
Hydrozoa
Physalia common term
Portugueses Man-O-War
Physalia live in _ environments
marine
Physalia have a Multi-Polyp or Medussa body stile
Multi-Polyp
Word for floating air bladder on Physalia
pneumatophore
Physalia carry a very _
dangerous toxin
Class Scyphozoa common term
True Jellyfish
True Jellyfish are mostly Medusa or Ployp form
Medusa
Most Jellyfish have colors?
no, most are colorless
T/F Jellyfish are easy to see in the water
F, nearly invisible
Jellyfish reproduce with _
planula larvae
Class Cubozoa common term
Box Jellies
Cubozoa hava Dominant Medusa or Polyp form
Medusa
Cubozoa characteristics
strong swimmers, rudimentary eyes that form images, strong sting, fish predators
Class Anthozoa common term
Corals and Anemones
Anemone body form
sessile Polyp
T/F Anemone have stinging tentactles
T
Anemone asexually reproduce through _
budding
T/F Anemone never build reefs
F, some build reefs
3 types of Corals reefs
Fringing reefs, Barriers, Atolls
Fringing reef grows off of an _
island
Barrier reef creates a _ between reef and mainland
lagoon