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ZOOLOGY > Arthropoda > Flashcards

Arthropoda Flashcards

1
Q

Distinguishing feature of Arthropods?

A

Jointed Appendages

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2
Q

Metamerism in arthropods are with __________

A

Modifications

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3
Q

periodic shedding of all cuticle / exoskeleton

A

Ecdysis / molting

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4
Q

In arthropods, the derived fusion of embryonic blastocoel that have reduced coelom is called

A

Hemocoel

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5
Q

a fluid, analogous to the blood in vertebrates, that circulates in the interior of the arthropod body, remaining in direct contact with the animal’s tissues.

A

Hemolymph

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6
Q

Arthropods circulatory system?

A

Open circulatory system

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7
Q

The diversity and success of arthropods are largely attributed to their _______, ____________, and ______________

A

segmentation, hard exoskeleton, and jointed appendages

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8
Q

Arthropod have wide ecological distribution because they are

A

carnivore, herbivore, omnivore

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9
Q

Arthropods habitat?

A

terrestrial and aquatic

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10
Q

Common in all subphylum of arthropods

A

Compound eye

1 pair of antennae

Chitinous exoskeleton with articulated appendages

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11
Q

Subphylum Chelicerata habitat?

A

Terrestrial or aquatic

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12
Q

what are absent in Subphylum Chelicerata?

A

Antennae and mandibles

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13
Q

Subphylum Chelicerata tagmata consists of?

A

Prosoma and opisthosoma

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14
Q

Class merostomata is under the subphylum _________

A

Chelicerata

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15
Q

Tachypleus sp. belongs to which class and subclass?

A

Class merostomata
Subclass Xiphosurida

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16
Q

Subclass Xiphosurida habitat?

A

shallow water

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17
Q

Subclass Xiphosurida carapace is ______

A

unsegmented

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18
Q

Subclass Xiphosurida prosoma consists of:

A

1 pair of chelicerae
1 pair of pedipalps
4 pairs of walking legs

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19
Q

Chelicera is the ______ pair of appendage in prosoma of Subclass Xiphosurida

A

1st pair

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20
Q

What is the 1st pair of appendage in prosoma of Subclass Xiphosurida?

A

Chelicerae

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20
Q

Pedipalps is the _______ pair of appendage in prosoma of Subclass Xiphosurida

A

2nd pair

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21
Q

What is the 2nd pair of appendage in prosoma of Subclass Xiphosurida?

A

Pedipalps

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22
Q

Feature and function of chelicera in Subclass Xiphosurida

A

Pincer-like

detect and manipulate food; for feeding

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23
Q

Function of pedipalps in Subclass Xiphosurida

A

locomotion, reproduction, and feeding

Specialized in males to clasp the carapace of female during mating

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24
Q

structure on base of legs of Subclass Xiphosurida

A

Gnathobase

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25
Q

Function of Gnathobase in Subclass Xiphosurida

A

For manipulating and grinding up food, then passing to mouth

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26
Q

In Subclass Xiphosurida, what bears the anus at the proximal end?

A

Telson

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27
Q

Function of telson in Subclass Xiphosurida

A

used for burrowing through sand and also for righting itself when turned over

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28
Q

What is the 1st abdominal appendange of Subclass Xiphosurida?

A

Genital operculum

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29
Q

In Subclass xiphosurida, Gill opercula have ______ pairs. Each modified on the underside into numerous __________

A

5 pairs

Leaflike book gills

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30
Q

Carapace of Subclass Xiphosurida have _________ and _______ eyes

A

2 rudimentary and 2 simple eyes

31
Q

Class arachnida habitat

A

warm, dry regions

32
Q

Most arachnida are ______

A

predaceous and have claws, fangs, poison glands, or stingers

33
Q

How many segmented joints in arachnida?

34
Q

Functions of Chelicerata’s opisthosoma

A

respiratory, digestive, reproductive

35
Q

Functions of Chelicerata’s prosoma

A

sensory, feeding, and locomotor

36
Q

Arachnida respiratory system is ________ and _________

A

book lungs and trachea

37
Q

What is the external opening of the tracheal system in Arachnida?

A

Tracheal spiracle

38
Q

what is responsible for creating webs?

A

Spinnerets

39
Q

Arachnida osmoregulatory system is __________

A

Malpighian tubules

40
Q

Crustacea are named for their _________

A

hard exoskeleton

41
Q

Crustacea habitat

A

Aquatic (mostly) and terrestrial

42
Q

What features are shared in Crustacea?

A

2 pairs of antennae
2 pairs of maxillae on the head
A pair of appendage on each body segments

43
Q

In Crustacea, cephalothorax is covered by the _______ and has ___ segments

A

carapace, 8 segments

44
Q

What consists of cephalothorax in Crustacea?

A

rostrum and stalked eyes

2 pairs of antennae

3 pairs of feeding appendages (maxillipeds)

5 pairs of walking legs (periopods)

45
Q

In Crustacea, the antennules is the ____ pair of antennae that is used for _____, _____, and _________

A

2nd pair

touch, taste, and equilibrium

46
Q

In Crustacea, the abdomen is made up of ____ segments, bearing _______ or ________

A

6 segments

swimmerets or pleopods

47
Q

What is the function of 1st swimmeret in crustacea?

A

with assistance of 2nd swimmeret, male uses it to transfer sperm to female.

48
Q

____ to ____ swimmerets of females carry eggs and young. And also used to circulate water in crustacea

A

2nd to 5th

49
Q

What is the last segment in the abdomen of Crustacea?

50
Q

In crustacea, telson is joined by __________ that make up the tail fan. which function for _________ and __________

A

uropod

rapid background movement during escapes

egg and juvenile protection

51
Q

Hexapoda is known to ________ with (#) orders

A

dominate in number

30 orders

52
Q

How many tagmata does hexapoda have? List them all

A

3

  1. Head
  2. Thorax
  3. Abdomen
53
Q

In Insecta, __________ exoskeleton is secreted by _____________

A

Chitinous, underlying epidermis

54
Q

In Insecta, Exoskeleton is composed of __________ (____________; hard plates), which are bounded by _____________

A

Scelrites, scleroproteins, sutures of soft cuticle

55
Q

How many legs does insecta have? is it uniramous or biramous?

A

6 legs, uniramous

56
Q

In insecta, Appendages attach to ________ and ________

A

head and thorax

57
Q

In insecta, Abdominal appendages may be greatly ____________ or ____________

A

reduced or totally absent

58
Q

How many pairs of true appendages does the head of Insecta consist of? what are those?

A

4 pairs

antennae, mandibles, maxillae, labium

59
Q

How many segments in the head region of insecta?

A

6 segments

60
Q

What is the movable, bilobed upper lip in insecta? Under this is the ________

A

Labrum

Mandible

61
Q

What is the bilobed lower lip in insecta? which is a result of fusion of the __________

A

Labium. 2nd maxillae

62
Q

in insecta, the mouth contains a membranous __________ for tasting food

A

hypopharynx

63
Q

How many segments does thorax of insecta have? and what are those?

A

3 segments

prothorax, mesothorax, metathorax,

64
Q

Which thorax bears the leathery forewing in insecta?

A

mesothorax

65
Q

Which thorax bears the membranous hindwing in insecta?

A

metathorax

66
Q

How many segments does abdomen of insecta have?

A

11 segments

67
Q

What is found in the 1st segment of the abdomen of insecta?

A

tympanum (large; organ of hearing)

68
Q

in insecta, what are the features of 2nd-8th segment of abdomen?

A

similar and unmodified

69
Q

in insecta, what is the feature of 9th-10th segment of abdomen?

A

partially fused

70
Q

in insecta, what is the feature of 11th segment of abdomen?

71
Q

(insecta abdomen) in females, the posterior end is _______. Consists of ____________ with smaller pair in between. overall called ___________

A

pointed

2 pairs of plate

Ovipositor

72
Q

(insecta abdomen) in males, the posterior end is

73
Q

Insecta Metamorphosis

Hemimetabolous (Incomplete) process?

A

Egg → nymphs → adults

74
Q

Insecta Metamorphosis

Holometabolous (Complete) process?

A

Egg → larvae (3 larvae stages) → pupa → adult

75
Q

Insecta Metamorphosis

Egg → nymphs → adults

A

Hemimetabolous (Incomplete)

76
Q

Insecta Metamorphosis

Egg → larvae (3 larvae stages) → pupa → adult

A

Holometabolous (Complete)

ZOOLOGY (4 decks)

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