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Arthropod Jeopardy
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General Trilobita & Pictures
Myriapoda & Crustacea
Chelicerata Hexapoda
Final Jeopardy
What % of all animals are arthropods and what does the word “Arthropoda”
actually mean?
2
80% of all animal species are arthropods
“Jointed Legs”
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What is an advantage and a disadvantage of the compound eye?
5
Advantage – Ultra wide viewing angle
Disadvantage – Poor image resolution
6
What is the name of the process by which arthropods
shed their exoskeleton and why is the shell initially soft?
7
The process is called molting. The shell remains soft initially so the
animal can have a chance to grow before the shell oxidizes and gets
hard.
8
Compare & contrast complete
and incomplete metamorphosis
9Incomplete – 3 stages (egg, nymph, & adult) where the nymph looks like the
adult but wingless
Complete – 4 stages (egg, larva, pupa, adult) where the larva looks nothing
like the adult
10
What are the various forms of respiration that can be found in members of the five Subphyla of
arthropods?
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Trilobita & Crustacea – GillsChelicerata – Book lungs
Hexapoda & Myriapoda – Spiracles
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What is the name of the extinction event that killed the trilobites, how long ago
was it, what was the cause of the extinction, and what two Eras of the
Phanerozoic Eon were divided by this extinction event?
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The Permian-Triassic extinction event occurred 250 mya and was caused by a super volcano that erupted in what is now modern-day Siberia. This event was the division point between the
Paleozoic and Mesozoic Eras
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Scorpionfly Brown Recluse
Butterfly Silverfish
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How has the study of trilobites led to
a better understanding of
plate tectonic theory?
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Since trilobite fossils have been found on the top of Mt. Everest, it shows
that Mt. Everest was once underwater and that the Earth is a dynamic and
ever-changing planet.
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Mayfly
Caddisfly
SpringtailLouse
Earwig
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What two types of
organisms are found in subphylum Myriapoda
and what does the word “Myriapoda” actually
mean?
23
Centipedes & Millipedes
“Many Legs”
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Name at least 4 members of Subphylum Crustacea
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Lobsters, crabs, shrimp, crayfish, barnacles, krill,
sea monkeys, etc…
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How can you tell the difference between male
and female crayfish?
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The first pair of swimmerets on male crayfish are enlarged for
sperm deposition.
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Complete the following chart:
Chilopoda Diplopoda
Common name
# Legs per segment
Coloration
Body shape
Diet
Toxin
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Chilopoda Diplopoda
Common name Centipedes Millipedes
# Legs per segment 1 pair or 2 legs 2 pair or 4 legs
Coloration Drab/Earth tones Bright/Colorful
Body shape Flattened Tubular
Diet Carnivorous Herbivorous
Toxin Venomous Poisonous
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Distinguish between chelicerae & pedipalps
33
Chelicerae – mouthparts usually adapted into fangs
Pedipalps – appendages used to grasp food and bring towards the
mouth
34
Distinguish between neurotoxins and necrotoxins
and give an example of a spider that has each type of
venom
35Neurotoxin – toxin that blocks the signals from the brain usually resulting in death by suffocation (black widow)
Necrotoxin – toxin that destroys flesh and causes local cell death at the bite site (brown recluse)
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What types of organisms are found in the following Chelicerata Classes:
EurypteridaXiphosura
Pycnogondia
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Eurypterida – Giant sea scorpionsXiphosura – Horseshoe crabs
Pycnogondia – Sea spiders
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Cicada
True Bug
Whip Spider
Leafhopper
Whip Scorpion
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What does the word “Hexapoda” actually mean and what type of organisms are considered hexapods?
37
Hexapoda means “six legs” and the hexapods are commonly
known as insects
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From what Arthropod Subphylum did the insects most likely evolve and how did this evolution proceed?
45 The hexapods evolved from the myriapods.
The elongated body of myriapod ancestors broke into three regions. The legs on the head region
evolved into complex mouthparts, the three pairs of legs on the thorax grew large enough to support the whole body, and the legs on the abdomen reabsorbed into the organism as it
evolved.
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48Match the word to the definition
Straight Wing HemipteraMembrane Wing ColeopteraHalf Wing DipteraSame Wing OrthopteraTwo Wing HomopteraShield Wing Hymenoptera
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Straight Wing = OrthopteraMembrane Wing = Hymenoptera
Half Wing = HemipteraSame Wing = Homoptera
Two Wing = DipteraShield Wing = Coleoptera
50
Describe how a honeybee’s waggle dance can show other bees where food is
located?
51Direction – The angle of the dance offset from the perpendicular of the hive is the same angle the bee flies
offset from the sun outside.Distance – The length of time spent during the waggle portion of each dance cycle. One second = 1 km
52
Phylum Subphylum Class Order(Jointed Legs) (Extinct Trilobites) ------------------ ------------------------------------ (Lobsters, crab, shrimp) ------------------ ------------------------------------ (Special Chelicerae Mouthparts) (Sea Scorpions) ------------------------------------ ------------------ (Horseshoe Crabs) ------------------------------------ ------------------ (Sea Spiders) ------------------------------------ ------------------ (8 legged Arthropods) (Ticks, Mites, & Chiggers)------------------ ------------------ ------------------ (Spiders)------------------ ------------------ ------------------ (Scorpions)------------------ (Many Legs) (1 pair legs per seg.) ------------------------------------ ------------------ (2 pair legs per seg.) ------------------------------------ (6 Legs) (Modern Insects) (Grasshoppers & Mantids)------------------ ------------------ ------------------ (Flies & Mosquitoes)------------------ ------------------ ------------------ (Beetles)------------------ ------------------ ------------------ (Cicadas & Aphids)------------------ ------------------ ------------------ (True Bugs)------------------ ------------------ ------------------ (Bees, Ants, & Wasps)
Eurypterida Homoptera Scorpiones OrthopteraHymenoptera Insecta Coleoptera Trilobita
Crustacea Pycnogondia Hexapoda HemipteraXiphosura Chilopoda Arachnida Myriapoda
Diptera Acari Diplopoda ArthropodaAranae Chelicerata
53Phylum Subphylum Class Order
Arthropoda Trilobita ------------------ ------------------
------------------ Crustacea ------------------ ------------------
------------------ Chelicerata Eurypterida ------------------
------------------ ------------------ Xiphosura ------------------
------------------ ------------------ Pycnogondia ------------------
------------------ ------------------ Arachnida Acari
------------------ ------------------ ------------------ Aranae
------------------ ------------------ ------------------ Scorpiones
------------------ Myriapoda Chilopoda ------------------
------------------ ------------------ Diplopoda ------------------
------------------ Hexapoda Insecta Orthoptera
------------------ ------------------ ------------------ Diptera
------------------ ------------------ ------------------ Coleoptera
------------------ ------------------ ------------------ Homoptera
------------------ ------------------ ------------------ Hemiptera
------------------ ------------------ ------------------ Hymenoptera
