Final

Question 1

Phylum Arthropoda consists of Subphylums

Answer 1

Chelicerata
Crustacea
Myriapoda
Hexapoda

Question 2

Subphylum Chelicerata consists of Classes

Answer 2

Merostomata
Pycnogonida
Arachnida

Question 3

Subphylum Crustacea consists of Classes

Answer 3

Branchiopoda
Maxillopoda
Malacostraca

Question 4

Subphylum Myriapoda consists of Classes

Answer 4

Diplopoda

Chilopoda

Question 5

Subphylum Hexapoda consists of Class

Answer 5

Insecta

Question 6

Why is Arthropod so successful?

Answer 6

1) Versatile exoskeleton
2) Tagmatization
3) Efficient gas exchange systems
4) Highly developed sense organs
5) Complex behavior patterns
6) Metamorphosis

Question 7

Cuticle is composed of

Answer 7

epicuticle
exocuticle
calcified endocuticle
uncalcified endocuticle

Question 8

Epidermis is composed of

Answer 8

cuboidal epithelia that secretes the cuticle

Question 9

Epicuticle is

Answer 9

an external surface composed of protein, lipoprotein, with external waxy layer

Question 10

Procuticle consists

Answer 10

proteins and chitin

Question 11

Sclerotization to form

Answer 11

sclerotin in the procuticle

Question 12

Movement is made possible by

Answer 12

the division of the cuticle into separate plates; connection of adjoining plates by a thin, flexible articular membrane; appendages, articulated outgrowths of the body wall; regional specialization of muscles

Question 13

Dorsal plate is called

Answer 13

tergum

Question 14

Ventral plate is called

Answer 14

sternum

Question 15

Lateral plate is called

Answer 15

pleuron

Question 16

Extrinsic muscles are to

Answer 16

connect the limb to the body

Question 17

Intrinsic muscles are to

Answer 17

connect wholly within the limb

Question 18

Flight by indirect musculature requires

Answer 18

dorsoventral muscle contraction pulls tergum towards sternum, providing force for upstroke; then, dorsoventral muscle relaxation and longitudinal muscle contraction arches tergum, providing force for downstroke.

Question 19

Flight by indirect and direct musculature requires

Answer 19

indirectly dorsoventrally muscle contraction, as before, provide force for upstroke; directly attached to part of the wing itself, direct force provided for the down stroke.

Question 20

Trancheal system is

Answer 20

extensive network of thin-walled tubes that branch into every part of the body

Question 21

Spiracule is

Answer 21

a valved opening to the tracheal system, sieve plate to prevent entry of water, dust, etc.

Question 22

Taenidia is

Answer 22

spiral thickening of the cuticle, tracheal support and prevent collapse

Question 23

Trachea branch out into

Answer 23

tracheoles which branch into a fine network over cells

Question 24

Small insects perform their gas transport by

Answer 24

a diffusion gradient, O2 consumption in tracheal system creates a partial vacuum which draws air in

Question 25

Large insects perform their gas transport by

Answer 25

muscular movements of abdomen pumps air through system

Question 26

Aquatic insects perform their gas transport

Answer 26

spiracles, usually non-functional; an air bubble can be held over the surface by secreted wax and hairs; in some larval insects, tracheal gills may be present

Question 27

arthropods have what circulatory system

Answer 27

open

Question 28

Sense organs of Arthropods are

Answer 28

exo/endoreceptors associated with modifications of the exoskeleton;

Question 29

Sensillum is

Answer 29

modification of the exoskeleton for the reception of environmental information