Post on 19-Jan-2016
Final Exam Jeopardy 2
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Nematoda Mollusca Echinodermata Arthropoda Chordata
Final Jeopardy
What type of body plans do Nematodes possess?
Acoelomate, Pseudocoelomate, or Coelomate
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Pseudocoelomate
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The following are characteristics of phylum Nematoda excepta. Pseudocoelomatesb. Mostly parasiticc. Deuterostomesd. Dioecious
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Deuterostomes
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What is the difference between Eutely & Epitoky?
7Eutely - A rare condition in which all
members of a particular species contain the exact same number of cells
in their bodiesEpitoky – cloning oneself and allowing those clones to breed to create the next
generation
8
What is the life cycle of the Ascaris worm?
91. Eggs accidentally ingested
2. Larvae break out of digestive tract and move to lungs via blood
3. Cough up larvae and swallow back into digestive tract
4. Adults mature and eggs pass in feces
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How do you contract the following nematodes?
WuchereriaTrichinella
Loa loaHookwormsDracunculus
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Wuchereria – MosquitoTrichina – Undercooked Pork
Loa loa – Loa loa FlyHookworms – Burrow into foot
Dracunculus – water contaminated with copepods
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Define the following Terms…MantleRadula
Chromatophores
13Mantle - the special cell layer that
secretes the shell in mollusksRadula - the rasping tongue found in
many mollusksChromatophores - the special cells
found in cephalopods that allow them to change color at will
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How do pearls form?
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A grain of sand is caught between the shell and
mantle and shell is layered around the grain of sand until it becomes a
pearl
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Which of the following invertebrates are the only invertebrate
deuterostomes?
Mollusks, Cnidarians, Nematodes, Echinoderms, or Annelids
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Echinoderms
How do the following mollusks obtain their food?
OystersSnailsSquid
Cone Snails
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Oysters – filter feedersSnails – radula
Squid – tear flesh with beakCone Snails – venomous harpoon
Name an organisms in each of the following Molluscan Classes
PolyplacophoraBivalvia
GastropodaScaphopodaCephalopoda
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Polyplacophora - ChitonsBivalvia – Clams, oysters, etc…
Gastropoda – Snails, conchs, etc…Scaphopoda – Tooth shells
Cephalopoda – Squid, octopus, nautilus
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What is the main difference between echinoderm larvae and adults?
(Symmetry)
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Larvae – BilateralAdults - Radial
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The following are all true of Echinoderms except…
a. Possess water vascular systemsb. No head or brainc. Arms in multiples of 5d. Protostomes
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Protostomes
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Trace the path that water takes through the water
vascular system
27MadreporiteStone CanalRing Canal
Radial CanalAmpullaeTube Feet
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How do the following Echinoderms obtain their food?
Sea UrchinsSea Stars
Brittle StarsSea Cucumbers
29Sea Urchins – bite off pieces of kelp with teeth
Sea Stars – extend stomach outside body
Brittle Stars – suspension feeding to grab floating plankton
Sea Cucumbers – shovel sand into mouth & extract organics
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List an organism found in each of the following 5 echinoderm Classes
AsteroideaHolothuroidea
CrinoideaEchinoidea
Ophiuroidea
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Asteroidea – Sea StarsHolothuroidea – Sea Cucumbers
Crinoidea – Sea LiliesEchinoidea – Urchins & Sand DollarsOphiuroidea – Brittle & Basket Stars
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What kinds of venom do the black widow and the brown
recluse possess?
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Black widow – NeurotoxinBrown recluse - Necrotoxin
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What 3 structures are used for respiration in various arthropods across the Arthropod Phylum?
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Gills, Book lungs, or Spiracles
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What kinds of organisms are in the following Arachnid Orders?
AranaeAcari
Scorpiones
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Aranae – Spiders Acari – Ticks & Mites
Scorpiones – Scorpions
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What kinds of organisms are in the following Arthropod Subphyla?
TrilobitaChelicerataMyriapodaCrustaceaHexapoda
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Trilobita - TrilobitesChelicerata – Arachnids &
Horseshoe CrabsMyriapoda – Centipedes & MillipedesCrustacea – Lobsters, shrimp, & crabs
Hexapoda – Insects
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Define each insect Order and provide an example of an insect in each
HemipteraColeoptera
DipteraOrthopteraHomoptera
Hymenoptera
41Hemiptera – Half Wing (true bugs)Coleoptera – Shield Wing (beetles)
Diptera – Two Wing (flies)Orthoptera – Straight Wing
(grasshoppers)Homoptera – Same Wing (cicadas)
Hymenoptera – Membrane wing (bees)
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Acorn Worm
Lancelet
Sea Squirt
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What type of organism is the only living member of the Phylum Hemichordata?
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Acorn Worms
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What types of organisms are found in Subphylum
Cephalochordata and Urochordata?
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Cephalochordata - Lancelets Urochordata - Sea Squirts
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Urochordates seem to “de-evolve” as they grow into adults. In what
ways is this “de-evolution” apparent?
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They lose their cephalization, mobility, and notochord while almost
losing the nerve cord completely
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Name the seven characteristics that all
Chordates have in common in at least part of their life.
51Post-anal Tail
NotochordDorsal, hollow nerve chord
Segmented musclesDeuterostomes
Pharyngeal gill slitsBilateral symmetry
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The P/T and K/T extinctions…
What was the cause of each extinction, how long ago did each occur, and what Eras of
the Phanerozoic Eon were separated by each extinction?
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P/T – Caused by a Supervolcano 250 mya (Separates the Paleozoic Era from
the Mesozoic Era)
K/T – Caused by an asteroid 65 mya (Separates the Mesozoic Era from the
Cenozoic Era)