Frage 1
Frage
they are circum global but entirely Aquatic
Frage 2
Frage
this phylum are charaterised by having [blank_start]radial[blank_end] symmetrical and are [blank_start]diploblastic.[blank_end] They possess [blank_start]cnidae[blank_end] and have a [blank_start]nerve net[blank_end], they posses a single [blank_start]body cavity[blank_end].
Antworten
-
radial
-
diploblastic.
-
cnidae
-
nerve net
-
body cavity
Frage 3
Frage
they have alternating generation, with a:
Antworten
-
Asexual polypoid
-
Sexual medusiod
-
Asexual Larvae
-
leciothrophic larvae
-
precociol
Frage 4
Frage
they have cilliate planula larvae
Frage 5
Frage
Describe what a dipoblastic structure is?
Antworten
-
Outer ectoderm, Inner entoderm, Separated by noncellular mesenchyme.
-
Endoderm, epidermis and cytoplasm
-
single celled membrane
-
has a three structured system
Frage 6
Antworten
-
Gastrodermis
-
Nemondermata
-
Edodermis
-
mesenchyme
-
nematocyte
-
Gatrobalder
-
Receptor cell
-
Reproductive cell
Frage 7
Frage
Check the type of cnidae
Antworten
-
pentrant
-
glutinant
-
volvent
-
volitile
-
kickstart
-
propeller
Frage 8
Frage
the cnidarian is produce in the layers from cnidoblasts, becoming cnidocytes.
Frage 9
Frage
what type of feeders are they
Antworten
-
Ambush predators
-
suspension
-
filter
-
forager
-
autotrophic
Frage 10
Frage
they have nematocyst covered feeding tentacles
Frage 11
Frage
prey are [blank_start]partially[blank_end] digested in [blank_start]gastrovascular cavity,[blank_end] completed in food [blank_start]vascuoles[blank_end].
Antworten
-
partially
-
gastrovascular cavity,
-
vascuoles
Frage 12
Frage
polypoid, is a stage which occurs in [blank_start]all[blank_end] classes, its s [blank_start]tubular sessile[blank_end] organism that reproduce [blank_start]asexually[blank_end] by plates which produce [blank_start]medusa[blank_end], they are [blank_start]radially[blank_end] symmetrical.
Antworten
-
all
-
tubular sessile
-
asexually
-
medusa
-
radially
Frage 13
Frage
The medusoid occur in all [blank_start]medusozoa[blank_end] classes, the are [blank_start]free-swimming disc-shaped[blank_end] structures they use [blank_start]propulsion[blank_end] to move through the [blank_start]water column,[blank_end] they are also [blank_start]radially[blank_end] symmtrical, these reproduce [blank_start]sexually[blank_end] and are usually [blank_start]dioecious[blank_end].
Frage 14
Antworten
-
developing
-
Medusa
-
Planula
Frage 15
Frage
Name all the symbiosis relationships shown by cnidarian?
Antworten
-
Zooxanthellae
-
fish
-
crustaceans
-
echinoderm
-
porifera
-
mollusca
-
cetaceans
Frage 16
Frage
class Hydrozoa, these are the [blank_start]simplest[blank_end] cnidarians with [blank_start]alternating[blank_end] generations, they have [blank_start]benthic colonial[blank_end] stage may be [blank_start]polymorphic[blank_end] where the small medusa stay attached to the polyp
Antworten
-
simplest
-
alternating
-
benthic colonial
-
polymorphic
Frage 17
Frage
Class Scyphozoa, is the [blank_start]true jellyfish[blank_end] they're exclusively [blank_start]marine[blank_end]. dominant and [blank_start]well-developed[blank_end] medusa phase
Antworten
-
true jellyfish
-
marine
-
well-developed
Frage 18
Frage
Cubozoa
contain the order of box jelly fish ([blank_start]cubomedusae[blank_end]), they are largely restricted to the [blank_start]tropics[blank_end], and they only produce a [blank_start]sigle medusa[blank_end]. they have well developed eye and also have [blank_start]toxic[blank_end] nematocysts
Antworten
-
cubomedusae
-
tropics
-
sigle medusa
-
toxic
Frage 19
Frage
what classes are bioluminescence common in
Antworten
-
Hydrozoa
-
Scphozoa
-
alcyonaria
-
Zoantharia
-
holothoriodia
Frage 20
Frage
bioluminescence produce luciferin de novi, reacts with oxygen to produce light
Frage 21
Frage
The class Alcyonaria, contains sea pens, [blank_start]sea fans[blank_end] and soft coral, they are [blank_start]modularly[blank_end] colonial so there non-polymophism. they also have no medusal stage. they have an [blank_start]internal[blank_end] syupport system and [blank_start]pinnate[blank_end] tentacles, arranged in [blank_start]eight[blank_end].
Antworten
-
sea fans
-
modularly
-
internal
-
pinnate
-
eight
Frage 22
Frage
Class Zoantharia, which are [blank_start]sea anemones[blank_end] and hard corals [blank_start]solitary[blank_end] or modularly colonial and also have no medusa stage, have [blank_start]external[blank_end] support with tentacles in multiples of [blank_start]six.[blank_end]
Antworten
-
sea anemones
-
solitary
-
external
-
six.