All arthropods have

1

• All arthropods have
• gills.
• jointed appendages.
• antennae.
• chelicerae.

2

• All arthropods have
• gills.
• jointed appendages.
• antennae.
• chelicerae.

3

• An arthropods exoskeleton performs all of the
  following functions except
• production of gametes.
• protection of internal organs.
• support of the animals body.
• preventing loss of body water.

4

• An arthropods exoskeleton performs all of the
  following functions except
• Production of gametes.
• Protection of internal organs.
• Support of the animals body.
• Preventing loss of body water.

5

• Most terrestrial arthropods breathe using
  branched, air-filled structures called
• gills.
• tracheal tubes.
• book lungs.
• book gills.

6

• Most terrestrial arthropods breathe using
  branched, air-filled structures called
• gills.
• tracheal tubes.
• book lungs.
• book gills.

7

• Crustaceans are the only arthropods that have
• three pairs of legs.
• two pairs of antennae.
• chitin in their exoskeleton.
• chelicerae.

8

• Crustaceans are the only arthropods that have
• three pairs of legs.
• two pairs of antennae.
• chitin in their exoskeleton.
• chelicerae.

9

• Which organism below contains chelicerae?
• House fly
• Crab
• Centipede
• Spider

10

• Which organism below contains chelicerae?
• House fly
• Crab
• Centipede
• Spider

11

• All insects have
• two pairs of legs.
• two pairs of antennae.
• two pairs of wings.
• three body sections.

12

• All insects have
• two pairs of legs.
• two pairs of antennae.
• two pairs of wings.
• three body sections.

13

• Most adult echinoderms show
• bilateral symmetry.
• top and bottom symmetry.
• radial symmetry.
• no symmetry.

14

• Most adult echinoderms show
• bilateral symmetry.
• top and bottom symmetry.
• radial symmetry.
• no symmetry.

15

• Oxygen is moved around the body of a sea star in
  its
• stem-like stalk.
• water vascular system.
• madreporite.
• bony plates.

16

• Oxygen is move around the body of a sea star in
  its
• stem-like stalk.
• water vascular system.
• madreporite.
• bony plates.

17

• Arthropod evolution has seen _____________ in the
  number of body segments.
• an increase
• a decrease
• no change

18

• Arthropod evolution has seen _____________ in the
  number of body segments.
• an increase
• a decrease
• no change

19

• In order to grow, arthropods must go through the
  process of
• molting.
• nymphing.
• metamorphosis.
• diffusion.

20

• In order to grow, arthropods must go through the
  process of
• molting.
• nymphing.
• metamorphosis.
• diffusion.

21

• Arthropods are classified based on the number and
  structure of body segments and appendages,
  especially
• antennae.
• walking legs.
• lung type.
• mouthparts.

22

• Arthropods are classified based on the number and
  structure of body segments and appendages,
  especially
• antennae.
• walking legs.
• lung type.
• mouthparts.

23

• Spiders have ______ body sections and ______
  pairs of walking legs.
• 2 and 3
• 2 and 4
• 3 and 3
• 3 and 4

24

• Spiders have ______ body sections and ______
  pairs of walking legs.
• 2 and 3
• 2 and 4
• 3 and 3
• 3 and 4

25

• Which group of arthropods have one pair of
  antennae and unbranched appendages?
• Crustaceanscrayfish
• Cheliceratesspiders
• Uniramiansinsects

26

• Which group of arthropods have one pair of
  antennae and unbranched appendages?
• Crustaceanscrayfish
• Cheliceratesspiders
• Uniramiansinsects

27

• Which of the following words best represents
  incomplete metamorphosis?
• like the adult
• different from the adult
• death before adulthood
• none of the above

28

• Which of the following words best represents
  incomplete metamorphosis?
• like the adult
• different from the adult
• death before adulthood
• none of the above

29

• Which group of organisms form complex societies?
• Crustaceans crayfish
• Chelicerates spiders
• Uniramians insects
• Echinoderms sea stars

30

• Which group of organisms form complex societies?
• Crustaceans crayfish
• Chelicerates spiders
• Uniramians insects
• Echinoderms sea stars

31

• Which structure is not associated with
  echinoderms?
• Chelipeds
• Endoskeleton
• Water vascular system
• Tube feet

32

• Which structure is not associated with
  echinoderms?
• Chelipeds
• Endoskeleton
• Water vascular system
• Tube feet

33

• Which function is least associated with the water
  vascular system?
• movement
• circulation
• excretion
• respiration

34

• Which function is least associated with the water
  vascular system?
• movement
• circulation
• excretion
• respiration

35

• Identify the correct order of structures that a
  water molecule would pass through in the sea
  star.
• madreporite, radial canal, ring canal, stone
  canal
• stone canal, madreporite, ring canal, radial
  canal
• madreporite, stone canal, ring canal, radial
  canal
• stone canal, ring canal, radial canal, madreporite

36

• Identify the correct order of structures that a
  water molecule would pass through in the sea
  star.
• madreporite, radial canal, ring canal, stone
  canal
• stone canal, madreporite, ring canal, radial
  canal
• madreporite, stone canal, ring canal, radial
  canal
• stone canal, ring canal, radial canal, madreporite

37

• Malpighian tubules are found in which type of
  organism?
• Aquatic arthropods
• Terrestrial arthropods
• Aquatic echinoderms
• Terrestrial echinoderms

38

• Malpighian tubules are found in which type of
  organism?
• Aquatic arthropods
• Terrestrial arthropods
• Aquatic echinoderms
• Terrestrial echinoderms

39

• Which of the following is associated with a
  voracious appetite before a long nap?
• Nymph
• Larva
• Pupa
• Mr. Dones on Thanksgiving Day

40

• Which of the following is associated with a
  voracious appetite before a long nap?
• Nymph
• Larva
• Pupa
• Mr. Dones on Thanksgiving Day

41

• Which of the following is not an appendage?
• spinneret
• cheliped
• antennule
• swimmeret

42

• Which of the following is not an appendage?
• spinneret
• cheliped
• antennule
• swimmeret

43

• Which of the following is not a mouthpart?
• pedipalp
• chelicerae
• maxilliped
• carapace

44

• Which of the following is not a mouthpart?
• pedipalp
• chelicerae
• maxilliped
• carapace

45

• Arachnids have mandibles.
• True
• False
• Some species do and some do not

46

• Arachnids have mandibles.
• True
• False
• Some species do and some do not