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Zoology > exam 3 > Flashcards

exam 3 Flashcards

1
Q

phylum mollusca, class cephalopoda: the shell has a nautiloid with what?

A

gas chambers

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2
Q

phylum mollusca, class cephalopoda: squid have a thin strip called what, enclosed in mantle?

A

pen

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3
Q

phylum mollusca, class cephalopoda: swim by expelling water through a funnel siphon, control direction & speed

A

locomotion

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4
Q

phylum mollusca, class cephalopoda: 1 pair of gills, branchial hearts

A

respiratory & circulatory systems

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5
Q

phylum mollusca, class cephalopoda:
brain is largest of any invertebrate, eye similar to mammals

A

nervous/sensory systems

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6
Q

why has cephalopod intelligence not evolved?

A

die after reproduction

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7
Q

why do cephalopods have intelligence?

A

communication

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8
Q

phylum mollusca, class cephalopoda:
what are cells in the skin that contain pigment granules?

A

chromatophores

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9
Q

phylum mollusca, class cephalopoda: empties into rectum, used when alarmed

A

ink sac/gland

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10
Q

phylum mollusca, class cephalopoda (reproduction): modified male arm that transfers into the female

A

hectocotylus

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11
Q

phylum mollusca, class cephalopoda: in reproduction, males store sperm, packaged in

A

spermatophores

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12
Q

mollusca: in subclass nautiloida, tentacles lack

A

suckers

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13
Q

molluscs: in subclass coleoidea octopods lack

A

tentacles

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14
Q

molluscs: in subclass coleoidea cuttlefish and squid have __ arms and __ tentacles

A

8 arms, 2 tentacles

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15
Q

clade ecdysozoa: molted by ____ using hormone ____

A

ecdysis; ecdysone

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16
Q

clade ecdysozoa phylum nematoda: these model for studies of genomics and cell development

A

Caenorhabdites elegans

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17
Q

clade ecdysozoa phylum nematoda: this is a set number of cells; can determine cell trait

A

eutely

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18
Q

clade ecdysozoa phylum nematoda: sensory organs on the head

A

amphids

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19
Q

clade ecdysozoa phylum nematoda: males have ____ which holds female vulva open

A

spicules

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20
Q

clade ecdysozoa phylum nematoda: an infection that contacts skin through soil

A

Necator americanus

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21
Q

clade ecdysozoa phylum nematoda: river blindness is caused by what bacteria?

A

Wolbachia

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22
Q

phylum onychoplora: tracheal system has what open to outside

A

spiracles

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23
Q

phylum tardigrada: the sucking mouth has 2 what that pierce integument of nematodes?

A

stylets

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24
Q

phylum tardigrada: what has a hydrostatic skeleton?

A

water bears

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25
Q

phylum tardigrada: water bears can suspend metabolism to survive harsh conditions, this is known as?

A

cryptobiosis

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26
Q

phylum tardigrada: in reproduction there may be an absence of males, what is this?

A

parthenogenesis

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27
Q

phylum onychoplora have what?

A

1 pair antennae and soft cuticle

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28
Q

success in arthropods includes?

A

•exoskeleton
•segmentation & jointed appendages
•air pumped directly to cells
•sensory organs
•complex behavior patterns
•metamorphosis

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29
Q

in arthropods, what are characteristics of the exoskeleton

A

•cuticle
•lightweight & flexible
•protection against drying
•ecdysis
•restricts final size

30
Q

in arthropoda, somites fused into specialized groups are

A

tagmata

31
Q

in arthropoda, appendages specialize in what?

A

sensing, food handling, walking, swimming, & digging

32
Q

in arthropoda, air is pumped directly into cells, how do terrestrial vs. aquatic arthropods respirate?

A

terrestrial: tracheal system
aquatic: gills

33
Q

in arthropoda, sensory organs have what capabilities?

A

•eyes: simple or compound
•touch, smell, hearing, balancing, & chemical reception

34
Q

arthropods have different larval & adult stages, as well as occupying different habitats and eating different food, what is this known as?

A

metamorphosis

35
Q

subphylum chelicerata, subclass eurypterida: the abdomen has __ segments which are spike-like ____

A

12 segments; telson

36
Q

subphylum chelicerata, subclass xiphosurida: the abdomen has __ pairs of broad, thin, appendages

A

6

37
Q

arachnids have two tagmata:

A

cephalothorax & abdomen

38
Q

order araneae (spiders): cephalothorax and abdomen joined by what?

A

pedicel

39
Q

order scorpionida: preabdomen has __ segments and post abdomen has long, slender tail of __ segments that ends in a stinger

A

pre-abdomen: 7 segments
post-abdomen: 5 segments

40
Q

order opiliones (daddy long legs): abdomen and cephalothorax lack what?

A

pedicel

41
Q

subphylum trilobita: fusion of segments (head) antennae, compound eyes, a mouth, jointed appendages

A

cephalon

42
Q

subphylum trilobita: fused into a plate

A

pygidium

43
Q

subphylum chelicerata has six paired appendages including:

A

chelicerae, pedipalps, and 4 pairs of legs

44
Q

subclass xiphosurida has what on some abdominal appendages?

A

book gills

45
Q

subclass xiphosurida carapace has ____ & ____ eyes

A

2 compound and 2 simple

46
Q

class merostomata has no hemoglobin meaning what?

A

blue blood

47
Q

class pycnogonida (sea spiders): some males have a pair of legs called what that carry developing eggs?

A

ovigers

48
Q

how many pairs of legs do sea spiders have?

A

4 pairs (some 5-6)

49
Q

in spiders, what provides sensory functions and reproduction?

A

pedipalps

50
Q

order araneae: parallel air pockets extend into a blood-filled chamber?

A

book gills

51
Q

how many pairs of spinnerets do spiders have?

A

2-3

52
Q

in spiders, males store sperm in what?

A

pedipalps

53
Q

scorpions can be oviviparous or viviparous, what does this mean?

A

can produce 6 to 90 young

54
Q

order solpugida (camel spiders): shred their prey with large

A

chelicerae

55
Q

order opiliones (daddy long legs): chelicerae are like

A

pinchers

56
Q

in order acari (ticks and mites) ___ pierce, tear, or grip food

A

chelicerae

57
Q

in ticks and mites the cephalothorax and abdomen are

A

fused

58
Q

subphylum crustacea have how many pairs of antenna

A

2

59
Q

subphylum crustacea have how many mandibles?

A

1 pair

60
Q

subphylum crustacea have how many maxillae?

A

2 pairs

61
Q

basal crustaceans can have up to __ segments

A

60

62
Q

crustaceans tagmata consists of

A

head, thorax, abdomen

63
Q

crustacea: nonsegmented anterior end

A

rostrum

64
Q

crustacea: dorsal covering

A

carapace

65
Q

crustaceans head have __ fused segments, thorax have __, and abdomen have __

A

head: 5
thorax: 8
abdomen: 6

66
Q

crustacea appendages consist of a basal _____, a lateral _____, and a medial _____

A

basal protopod, lateral exopod, medial endopod

67
Q

crustaceans compound eyes are made of many units called what?

A

ommatidia

68
Q

crustaceans nauplius consists of a _____ 1st antennae, _____ 2nd antennae, and _____ for swimming

A

uniramous 1st antennae, biramous 2nd antennae, and mandibles for swimming

69
Q

nauplius larva are unlike adults and undergo what

A

metamorphosis

70
Q

crustaceans telson is the last abdominal so it’s and uropods are what?

A

the tail

Zoology (3 decks)

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