Arthropod Jeopardy GeneralTrilobita & Pictures Myriapoda & Crustacea ChelicerataHexapoda 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” 3

4 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

9 Incomplete – 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?

11 Trilobita & Crustacea – Gills Chelicerata – Book lungs Hexapoda & Myriapoda – Spiracles

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14 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?

15 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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17 Scorpionfly Brown Recluse ButterflySilverfish

18 How has the study of trilobites led to a better understanding of plate tectonic theory?

19 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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21 Mayfly Caddisfly Springtail Louse Earwig

22 What two types of organisms are found in subphylum Myriapoda and what does the word “Myriapoda” actually mean?

23 Centipedes & Millipedes “Many Legs”

24 Name at least 4 members of Subphylum Crustacea

25 Lobsters, crabs, shrimp, crayfish, barnacles, krill, sea monkeys, etc…

26 How can you tell the difference between male and female crayfish?

27 The first pair of swimmerets on male crayfish are enlarged for sperm deposition.

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30 Complete the following chart: ChilopodaDiplopoda Common name # Legs per segment Coloration Body shape Diet Toxin

31 ChilopodaDiplopoda Common nameCentipedesMillipedes # Legs per segment1 pair or 2 legs2 pair or 4 legs ColorationDrab/Earth tonesBright/Colorful Body shapeFlattenedTubular DietCarnivorousHerbivorous ToxinVenomousPoisonous

32 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

35 Neurotoxin – 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)

36 What types of organisms are found in the following Chelicerata Classes: Eurypterida Xiphosura Pycnogondia

37 Eurypterida – Giant sea scorpions Xiphosura – Horseshoe crabs Pycnogondia – Sea spiders

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41 Cicada True Bug Whip Spider Leafhopper Whip Scorpion

42 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

44 What four major mouthpart adaptations may be seen in hexapods?

45 Chewing, sponging, siphoning, and piercing

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48 Match the word to the definition Straight WingHemiptera Membrane WingColeoptera Half WingDiptera Same WingOrthoptera Two WingHomoptera Shield WingHymenoptera

49 Straight Wing = Orthoptera Membrane Wing = Hymenoptera Half Wing = Hemiptera Same Wing= Homoptera Two Wing = Diptera Shield Wing = Coleoptera

50 Describe how a honeybee’s waggle dance can show other bees where food is located?

51 The bee conveys direction by the angle of the dance in relation to the perpendicular of the hive. The bee conveys distance by the length of time spent during the waggle portion of each dance cycle. One second = 1 km

52 From what arthropod Subphylum did the hexapods evolve and how did this evolution proceed?

53 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.