Transcript JeopardyChapter8

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Feeding
Symmetry
Scientific/
Common
Name
Sponges
Cnidaria
Marine
Worms
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Sponges are
included in this
Phylum.
Porifera
Scientific term
used to describe
movement in
sponges
Sessile
This is the part of
the sponge where
digestion and
circulation take
place.
Atrium
Two defenses
sponges use to
deter predators
Toxins & Spicules
This organism
forms a symbiotic
relationship with
sponges.
Cyanobacteria
These stinging
organelles are
found in
Cnidocytes.
Nematocysts
This Cnidarian
class includes what
is considered the
most poisonous
animal on Earth.
Cubozoa
This digestive space
is found in
Cnidarians.
Gastro-vascular
cavity
Planktonic form of
a Cnidarian’s life
cycle (tentacles
point down)
Medusa
Class of Cnidarian
whose organisms
live in colonies of
specialized polyps
Hydrozoa
Marine worms use
this “water
skeleton” for
support
Hydrostatic
Skeleton
Two ecological roles
of marine worms
Absorb nutrients
too small to be
absorbed by others,
prey, habitat,
parasites
This phylum
contributes more
organisms to Earth
than any other
phylum of worm.
Nematodes
(roundworms)
Common name for
Chaetognatha
Arrow Worms
Ectoprocta,
Phoronida, and
Brachiopoda all
bear this unique
feature
lophophore
This type of feeding
involves the
consumption of
microscopic
organisms found in
ocean water.
Suspension/filter
Feeding
Sponges get their
food using this
technique.
Filter/Suspension
Feeding
This is the main
predator that
specializes in
feeding on
sponges.
Hawksbill Sea
Turtle
Besides
filter/suspension
feeding, Cnidarians
exhibit this type of
feeding.
Carniverous
Predatorial
Name two types of
feeding exhibited
by marine worms.
Deposit feeding,
Carniverous,
Suspension feeding
This refers to
having “no”
symmetry.
Asymmetrical
Cnidarians exhibit
this type of
symmetry.
Radial Symmetry
Sponges exhibit
this type of
symmetry.
Asymmetry
Marine worms
exhibit this type of
symmetry.
Bilateral symmetry
This is the
advantage of radial
symmetry.
Being able to
approach
environment
equally from all
sides
Platyhelminthes
Flat worms
Portuguese man o’
war, fire
coral…etc.
Hydrozoa
True Jellyfish
Scyphozoa
Nematodes
Roundworms
Phoronida
Burrowing worms
Make your wager
These flagellated cells
in a sponge’s atrium
are responsible for
circulating water and
filter feeding
Choanocytes