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54 Cards in this Set
- Front
- Back
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Cnidarians are nicknamed
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"stinging nettle"
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Rhopalia
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complex sensory structures that can include image-forming eyes with lenses and reinas
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The four main classes of Cnidaria
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Anthozoa, Scyphozoa, Cubozoa, and Hydrozoa
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Anthozoa includes
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anenomes, coral, etc.
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Scyphozoa includes
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jellyfish
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Cubozoa includes
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box jellies
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Hydrozoa includes
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hydroids, hydromedusae, and siphonophores
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Siphonophors includes
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Obelia, Aequorea, Portuguese Man O' War, etc.
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How do most cniderian feed?
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prey that cme in contact with their tentacles
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Some groups such as coral live like this
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symbiotically
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each cnidocyte cell contains this organelle
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nematocyst
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a nematocyst contains what
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a coiled hollow thread-like structure
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the side of the cell has a hair-like trigger called what
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a cnidocil
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Cnidarians reproduce both
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sexually and asexually
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cnidarians reproduce asexually by
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budding
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budding
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a bud falls off the organism and becomes a new polyp
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the eggs are fertilized by sperm and developig into a larva called what
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planula
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the planula develops into a new poly which produces a new what
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medusa
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medusa body types of cnidarians have both sexual and asexual stages that what
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alternate
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When the medusae reproduces sexually to produce polyps, which grows up and reproduces new what
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medusae
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jellyfish features include (4 features be specific)
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a simple nerve net (in bell) with sensory cells, a gut cavity with one opening for food, waste, and sex gametes, a layer of mesoglea (jelly), and several oral arms and tentacles
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four jellyfish orders
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saemeostomae, rhizostomae, stauromedusae, and coronatae
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saemeostomae
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common jellyfish
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common jellyfish name
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aurelia found in the USA
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rhizostomae
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upside down jellyfish (mosaic jelly)
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upside down jellfish name
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cassioseia sea bottom dweller
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stauromedusae
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small stalk-like jellyfish that remain attached to a surface their whole life
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coronatae
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crown jellyfish, live in the abyssmal regions of the oceans
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class anthozoa nicknamed
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"flower animal"
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anthozoa possess a stalk like body called
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polyp
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anthozoa mouth is encircled with what
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tentacles with cnidocytes
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anthozoa lifestyle
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sessile
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this class is the most diverse among all cnidarians
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anthozoa
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sea anemones belong to the sub-class what
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actiniaria
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sea anemones are found mostly in the what
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warmer coastal waters
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In sea anemones, tentacles are arranged around a circular mouth along a what
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oral disc
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the sea anemone mouth leads into a tube shaped what
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pharynx
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from the sea anemone's pharynx food travels to a larger gastrovascular cavitiy that is divided into how many regions
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6
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sea anemones are carnivorous and will eat both
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live and dead animals
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sea anemones can glide along on their what
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pedal disc
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when distrubed the sea anemone can contract and withdraw their what inward
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tentacles
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sea coral belong to this order
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scleractinia
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sea coral feed on this using their cnidocytes
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zooplankton or small fish
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the most productive of all ecosystems is this
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coral reef
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the most contributing corals in a coral reef is the what
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schleractinians (reef building corals)
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what helps hold the reef together
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coralline algae
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a coral reef is a large formation of what
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clacium carbonate
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hydrozoa stands for what
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water animal
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the majority of hydrozoa live in a what habitat
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marine
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a freshwater hydra has only what stage
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polyp
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a hydrozoan includes a basic what body plan
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polyp
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in a hydrozoan the mouth is called what in which is surrounded by a crown of tentacles
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hypostome
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a hydrozoan possess a what cavity
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gastrovascular
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the three body layers of a hydrozoan are
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epidermis, mesoglea, and gastrodermis
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