Chapter 19 - Phylum Arthropoda

Question 1

What is segmentation called in Arthropods?

Answer 1

Tagmata

Question 2

What is tagmata?

Answer 2

Tagmata is the segmentation in Arthropods as functional units

Question 3

What are appendages?

Answer 3

Appendages are limbs that are specialized for different functions

Question 4

What kind of respiration do terrestrial arthropods have?

Answer 4

Tracheal system of air tubes

Question 5

What kind of respiration do aquatic arthropods use?

Answer 5

Gills

Question 6

What kind of eyes do arthropoda have?

Answer 6

Simple to compound mosaic eyes

Question 7

What does uniramous mean?

Answer 7

Single appendage

Question 8

What does biramous mean?

Answer 8

Branched or more than one appendage

Question 9

Arthropod mouths have two forms. What are they?

Answer 9

Chelicerae or mandibles

Question 10

What kind of symmetry to arthropods have?

Answer 10

Bilateral

Question 11

What kind of digestive system do arthropods have?

Answer 11

Complete

Question 12

What kind of circulatory system do arthropods have?

Answer 12

Open

Question 13

What kind of muscles do arthropods have?

Answer 13

Striated muscles that contract and are in parallel rows

Question 14

What kind of excretory glands do arthropods have?

Answer 14

Coxal, antennal, maxillary glands, or malpighian tubules

Question 15

What kind of respiration do arthropods have?

Answer 15

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

Question 16

What is the sexual reproduction like in arthropods?

Answer 16

Dioecious, internal fertilization, eggs, or live birth

Question 17

Name the three classes in Subphylum Chelicerata

Answer 17

Merostomata, Pycnogonida, and Arachnida

Question 18

What body parts do members of chelicerata have?

Answer 18

Two tagmata; a cephalothorax and an abdomen

Question 19

What kind of appendages to chelicerata have?

Answer 19

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

Question 20

How do chelicerates eat their prey?

Answer 20

Suck liquid food from prey

Question 21

What is the common name for members of Class Merostomata?

Answer 21

Horseshoe Crabs

Question 22

What is a hard dorsal shield?

Answer 22

Carapace

Question 23

What is the terminal portion or tailpiece called?

Answer 23

Telson

Question 24

What are flat, leaflike gills called?

Answer 24

Book Gills

Question 25

What do horseshoe crabs eat?

Answer 25

Feed on worms and small molluscs

Question 26

Why do horseshoe crabs come to shore?

Answer 26

To mate

Question 27

What are the orders in the class arachnida?

Answer 27

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

Question 28

What do spiders have on the end of their chelicerae?

Answer 28

Fangs

Question 29

What are pedipalps and what are they used for?

Answer 29

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

Question 30

How many pairs of walking legs do spiders have?

Answer 30

Four

Question 31

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

Answer 31

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

Question 32

What are coxal glands?

Answer 32

Modified nephridia that open at the coxa

Question 33

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

Answer 33

Eight eyes; vision is often poor

Question 34

Arthropods exoskeleton is made up of?

Answer 34

Chiton, proteins, and sometimes calcium

Question 35

What classes are in the Subphylum Myriapoda?

Answer 35

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