Term
| Cnidarians level of organization |
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Definition
| tissue level of organization |
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Term
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Definition
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Term
| Stinging organelles in cnidarians |
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Definition
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Term
| jelly-like layer in Cnidarians |
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Definition
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Term
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Definition
Phylum - Cnidaria
Class Hydrozoa (hydra, obelia, gonionemus)
Class Scyphozoa (Aurelia)
Class Cubozoa
Class Anthozoa (Metridium, all polyps no medusa)
Class Staurozoa (all polyps, no medusa) |
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Term
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Definition
Phylum - Cnidaria
Class - Hydrozoa
Order - Hydroida
Genus - Obelia |
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Term
| What are the two dispersal stages in the life cycle of the Obelia? |
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Definition
1. medusa buds break away from gonangia
2. when medusae are mature, they discharge gametes into the surrounding water |
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Term
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Definition
| main stem, gives rise to lateral branches |
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Term
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Definition
feeding hydranths
reproductive gonangia |
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Term
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Definition
feeding
vase shape, tentacles at end |
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Term
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Definition
elongated club shape, lack of tentacles
reproductive |
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Term
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Definition
thin transparent protective covering secreted by epidermis
nonliving |
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Term
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Definition
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Term
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Definition
| forms protective cup around hydranth |
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Term
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Definition
| hollow continuation of ceonosarc |
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Term
| Gonionemus Classification |
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Definition
Phylum - Cnidaria
Class - Hydrozoa
Order - Hydroidia
Genus - Gonionemus |
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Term
| Medusa aboral surface is called |
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Definition
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Term
| Medusa oral surface is called |
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Definition
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Term
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Definition
| epidermis, mesoglea, gastrodermis |
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Term
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Definition
contain nematocysts, small capsule capable of forcefully ejecting a coiled thread armed with hooks
used to obtain food and protect themselves |
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Term
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Definition
Phylum - Cnidaria
Class - Scyphozoa
Order - Semaeostomae
Genus - Aurelia |
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Term
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Definition
| tetramerous radial symmetry |
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Term
| Scyphozoans are commonly known as... |
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Definition
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Term
| Removal of rhopalia would... |
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Definition
| interfere with swimming, slowing down contractions or stopping them altogether |
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Term
| What is the use of cnidocytes in gastrovascular cavity? |
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Definition
| capture prey and push into gastrovascular cavity |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Phylum - Cnidaria
Class - Anthozoa
Order - Zoantharia
Genus - Metridium |
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Term
| function of Metridium siphonoglyph |
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Definition
| to create currents of water into the pharynx for respiration and maintenance of internal pressure |
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Term
| function of retractor muscles in Metridium |
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Definition
| to bend and shorten the column |
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Term
| function of septal (digestive) filaments in Metridium |
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Definition
| bear cnidocytes and secrete digestive enzymes |
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Term
| function of acontia in Metridium |
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Definition
long delicate threads
contain stinging cells that may be protruded through the mouth or body pores for defense |
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Term
| Platyhelminthes body cavity |
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Definition
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Term
| Flatworm level of organization |
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Definition
tissue-organ level of organization
3 tissue layers, no body cavity |
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Term
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Definition
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Term
| Classes of Platyhelminthes |
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Definition
Phylum - platyhelminthes
Class Turbellaria (Dugesia tigrina, planarian)
Class Monogenea (flukes)
Class Trematoda (flukes)
Class Cestoda (tapeworms) |
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Term
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Definition
Phylum - Platyhelminthes
Class - Turbellaria
Order - Tricladida
Genus - Dugesia |
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Term
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Definition
| ear-like structures, tactile and olfactory not auditory |
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Term
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Definition
| secrete path of mucus on which the planarian propels itself by means of its cilia |
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Term
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Definition
monoecious
reproduce asexually by transverse fission |
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Term
| planarian excretion/osmoregulation |
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Definition
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Term
| function of planarian protonephridial system |
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Definition
| osmoregulation - regulation of internal water |
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Term
| two life stages of Cnidarians |
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Definition
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Term
| Cnidarians bodies made up of two cell layers and a jellylike layer named |
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Definition
| ectoderm, endoderm, mesoglea |
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Term
stinging organelles are called _____
cells that contain these organelles are called ______ |
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Definition
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Term
| cavity inside cnidarians is called |
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Definition
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