Lecture 15-Invertebrate II Flashcards Preview

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Flashcards in Lecture 15-Invertebrate II Deck (50):
1

Roundworms are in the phylum __________.

Nematoda

2

Roundworms are __________ worms.

Non-segmented

3

Organisms in the phylum Nematoda have __________ muscles.

Longitudinal

4

Organisms in the phylum Nematoda have __________ canals.

Alimentary

5

Do organisms in the phylum Nematoda have circulatory systems?

No

6

Organisms in the phylum Nematoda are free __________ and __________.

Living, parasitic

7

The Filariasis nematode can cause __________.

Elephantiasis (aka elephantitis)

8

__________ is caused by nematode larvae encysted in muscle.

Trichinosis

9

Rod of Asclepius may be based on this nematode.

Guinea worm

10

"Jointed feet".

Arthropoda

11

Organisms in the phylum Arthropoda have __________ symmetry.

Bilateral

12

Arthropods have __________ bodies.

Segmented

13

Arthropods have hard __________.

Exoskeletons

14

An arthropod's exoskeleton is made of __________.

Chitin

15

An arthropod's exoskeleton is __________ resistant.

Desiccation

16

Ecdysis is otherwise known as what?

Molt

17

Arthropods have __________ legs.

Jointed

18

An arthropod's many pairs of limbs provide __________.

Specialization

19

Arthropods have __________ guts.

Complete

20

Arthropods have __________ circulatory systems.

Open

21

Arthropods evolved from:

Segmented worms

22

Segments __________ over time and __________.

Fuse, specialize

23

The class of Arthropods that are extinct.

Trilobites

24

The 5 classes of Arthropods are:

Cheliceriformes, Myriapoda, Hexapoda, Crustacea, and Trilobites

25

Spiders, ticks, horseshoe crabs, and scorpions are examples of __________.

Cheliceraformes

26

Claw-like feeding appendage.

Chelicera

27

Cheliceraformes do not have __________.

Antennae

28

Fused head and thorax.

Cephalothorax

29

Cheliceraformes have:

Cephalothoraxes

30

Millipedes are __________.

Herbivores

31

Millipedes have _____ pair(s) of legs per segment.

2

32

Centipedes are __________.

Carnivores

33

Centipedes have _____ pair(s) of legs per segment.

1

34

Millipedes and centipedes are in this class of Arthropoda.

Myriapoda

35

This class of Arthropods is insects.

Hexapoda

36

The 3 main parts of class Hexapoda are:

Head, thorax, and abdomen

37

Insects (or organisms in the class Hexapoda) have _____ pair(s) of walking legs.

3

38

Insects (or organisms in the class Hexapoda) have _____ antennae.

2

39

Crabs, shrimp, barnacles, and lobsters are examples of __________.

Crustacea

40

Most organisms in the class Crustacea are __________ and __________.

Marine and freshwater

41

A few organisms in the class Crustacea are __________.

Terrestrial

42

Starfish, brittle stars, sea cucumbers, and sea urchins are examples of __________.

Echinoderms

43

Are Echinoderms protostomes or deuterostomes?

Deuterostomes

44

Echinoderms have endoskeletons made of __________ __________.

Calcareous plates

45

Hydraulic system of closed tubes containing sea water.

Water vascular system

46

Used for locomotion (tube feet), food and waste transport, and respiration.

Water vascular system

47

The water vascular system is used for __________, __________ and __________ transport, and __________.

Locomotion, food and waste, respiration

48

Echinoderms have __________ larvae.

Bilateral

49

Adult echinoderms have __________ symmetry.

Radial

50

Radial symmetry in echinoderms is __________.

Homoplastic