Chapter 19 - Phylum Arthropoda Flashcards

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1
Q

What is segmentation called in Arthropods?

A

Tagmata

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2
Q

What is tagmata?

A

Tagmata is the segmentation in Arthropods as functional units

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3
Q

What are appendages?

A

Appendages are limbs that are specialized for different functions

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4
Q

What kind of respiration do terrestrial arthropods have?

A

Tracheal system of air tubes

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5
Q

What kind of respiration do aquatic arthropods use?

A

Gills

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6
Q

What kind of eyes do arthropoda have?

A

Simple to compound mosaic eyes

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7
Q

What does uniramous mean?

A

Single appendage

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8
Q

What does biramous mean?

A

Branched or more than one appendage

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9
Q

Arthropod mouths have two forms. What are they?

A

Chelicerae or mandibles

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10
Q

What kind of symmetry to arthropods have?

A

Bilateral

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11
Q

What kind of digestive system do arthropods have?

A

Complete

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12
Q

What kind of circulatory system do arthropods have?

A

Open

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13
Q

What kind of muscles do arthropods have?

A

Striated muscles that contract and are in parallel rows

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14
Q

What kind of excretory glands do arthropods have?

A

Coxal, antennal, maxillary glands, or malpighian tubules

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15
Q

What kind of respiration do arthropods have?

A

Body surface, gills, air tubes (trachea), or book lungs

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16
Q

What is the sexual reproduction like in arthropods?

A

Dioecious, internal fertilization, eggs, or live birth

17
Q

Name the three classes in Subphylum Chelicerata

A

Merostomata, Pycnogonida, and Arachnida

18
Q

What body parts do members of chelicerata have?

A

Two tagmata; a cephalothorax and an abdomen

19
Q

What kind of appendages to chelicerata have?

A

Six pairs of cephalothoracic appendages (pair of chelicerae, pair of pedipalps, and four pairs of walking legs)

20
Q

How do chelicerates eat their prey?

A

Suck liquid food from prey

21
Q

What is the common name for members of Class Merostomata?

A

Horseshoe Crabs

22
Q

What is a hard dorsal shield?

A

Carapace

23
Q

What is the terminal portion or tailpiece called?

A

Telson

24
Q

What are flat, leaflike gills called?

A

Book Gills

25
Q

What do horseshoe crabs eat?

A

Feed on worms and small molluscs

26
Q

Why do horseshoe crabs come to shore?

A

To mate

27
Q

What are the orders in the class arachnida?

A

Araneae (Spiders), Scorpiones (Scorpions), Solpugida (Camel Spiders), Opiliones (Harvestman or Daddy Long Legs), Acari (ticks and mites)

28
Q

What do spiders have on the end of their chelicerae?

A

Fangs

29
Q

What are pedipalps and what are they used for?

A

A pair of leglike sensory appendages that are also used by males for sperm transfer

30
Q

How many pairs of walking legs do spiders have?

A

Four

31
Q

What are malpighian tubules and how do they help conserve water?

A

They are excretory canals that drain waste, but most water is recycled by resorptive cells. The waste is uric acid.

32
Q

What are coxal glands?

A

Modified nephridia that open at the coxa

33
Q

How many simple eyes do spiders have? Do they allow spiders to see well?

A

Eight eyes; vision is often poor

34
Q

Arthropods exoskeleton is made up of?

A

Chiton, proteins, and sometimes calcium

35
Q

What classes are in the Subphylum Myriapoda?

A

Chilopoda (Centipedes), Diplopoda (Millipedes), Pauropoda (Pauropod), Symphyla (Symphylans)