Cnidaria

Description

first year revision
chloe allen
Quiz by chloe allen, updated more than 1 year ago
chloe allen
Created by chloe allen almost 7 years ago
47
1

Resource summary

Question 1

Question
they are circum global but entirely Aquatic
Answer
  • True
  • False

Question 2

Question
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].
Answer
  • radial
  • diploblastic.
  • cnidae
  • nerve net
  • body cavity

Question 3

Question
they have alternating generation, with a:
Answer
  • Asexual polypoid
  • Sexual medusiod
  • Asexual Larvae
  • leciothrophic larvae
  • precociol

Question 4

Question
they have cilliate planula larvae
Answer
  • True
  • False

Question 5

Question
Describe what a dipoblastic structure is?
Answer
  • Outer ectoderm, Inner entoderm, Separated by noncellular mesenchyme.
  • Endoderm, epidermis and cytoplasm
  • single celled membrane
  • has a three structured system

Question 6

Question
Add the labels
Answer
  • Gastrodermis
  • Nemondermata
  • Edodermis
  • mesenchyme
  • nematocyte
  • Gatrobalder
  • Receptor cell
  • Reproductive cell

Question 7

Question
Check the type of cnidae
Answer
  • pentrant
  • glutinant
  • volvent
  • volitile
  • kickstart
  • propeller

Question 8

Question
the cnidarian is produce in the layers from cnidoblasts, becoming cnidocytes.
Answer
  • True
  • False

Question 9

Question
what type of feeders are they
Answer
  • Ambush predators
  • suspension
  • filter
  • forager
  • autotrophic

Question 10

Question
they have nematocyst covered feeding tentacles
Answer
  • True
  • False

Question 11

Question
prey are [blank_start]partially[blank_end] digested in [blank_start]gastrovascular cavity,[blank_end] completed in food [blank_start]vascuoles[blank_end].
Answer
  • partially
  • gastrovascular cavity,
  • vascuoles

Question 12

Question
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.
Answer
  • all
  • tubular sessile
  • asexually
  • medusa
  • radially

Question 13

Question
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].
Answer
  • medusozoa
  • free-swimming disc-shaped
  • propulsion
  • water column,
  • radially
  • sexually
  • dioecious

Question 14

Question
label the diagram
Answer
  • developing
  • Medusa
  • Planula

Question 15

Question
Name all the symbiosis relationships shown by cnidarian?
Answer
  • Zooxanthellae
  • fish
  • crustaceans
  • echinoderm
  • porifera
  • mollusca
  • cetaceans

Question 16

Question
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
Answer
  • simplest
  • alternating
  • benthic colonial
  • polymorphic

Question 17

Question
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
Answer
  • true jellyfish
  • marine
  • well-developed

Question 18

Question
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
Answer
  • cubomedusae
  • tropics
  • sigle medusa
  • toxic

Question 19

Question
what classes are bioluminescence common in
Answer
  • Hydrozoa
  • Scphozoa
  • alcyonaria
  • Zoantharia
  • holothoriodia

Question 20

Question
bioluminescence produce luciferin de novi, reacts with oxygen to produce light
Answer
  • True
  • False

Question 21

Question
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].
Answer
  • sea fans
  • modularly
  • internal
  • pinnate
  • eight

Question 22

Question
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]
Answer
  • sea anemones
  • solitary
  • external
  • six.
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