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Biology 102 > Invertabrate Biology > Flashcards

Invertabrate Biology Flashcards

1
Q

What are the Classes located in Phylum Mollusca?

A 
Class->
Bivalva
Gastropoda
Cephalopda
Polyplacophora
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2
Q

What animals are located in Class Bivalva?

A

Clams, oysters, Scallops, and Mussels

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3
Q

What does moluska mean?

A

Soft body

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4
Q

What are the 3 parts of a mollusk body?

A

Visceral mass
Mantle
Foot

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5
Q

What is most of a mollusk shell made of?

A

Calcium carbonate

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6
Q

How are the two types of the shell opened and closed in mollusks?

A

By adductor muscles

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7
Q

What part of the mollusk body is used for burrowing?

A

the foot

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8
Q

How is water circulated through mollusks?

A

by siphons

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9
Q

How do mussels attach themselves to intertidal structures?

A

by strong byssal threads

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10
Q

What are Geoducks?

A

Giant Clams

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11
Q

What do scallops posses that other shellfish do not?

A

Eyes with a lens and retina

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12
Q

What is the Periostracum layer on an oyster shell?

A

Outer protien layer

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13
Q

What is the Prismatic layer on an oyster shell?

A

Middle calcium carbonate CaCO3

-and the thickest layer

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14
Q

What is the nacreous layer on an oyster shell?

A

The ‘mother of pearl’ layer

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15
Q

Where do pearls form in an oyster?

A

Between nacreous layer and mantle

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16
Q

What is the umbo?

A

The oldest part of the shell->The ‘hinge’

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17
Q

What animals are in class Gastropoda?

A

Snails and Slugs

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18
Q

Which has a shell?

Snails or slugs?

A

Snails have a shell, slugs do not

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19
Q

What do snails and slugs have for grazing on grass?

A

A radula

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20
Q

Do aquatic snails have seperate sexes?

A

yes

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21
Q

Do terrestrial snails have seperate sexes?

A

no, they are hermaphrodidic

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22
Q

When do snails retreat into their shell?

A

during dry periods

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23
Q

What is the unfortunate consequence of snails undergoing torsion during larvae development?

A

The anus ends up above the head

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24
Q

What modified radula does the cone snail possess?

A

A harpoon with a poisonious gland

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25
Q

What modified radula does the Moon snail possess?

A

Can drill holes into clam shells

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26
Q

What is a nudibranch?

A

A sea slug that doesnt have a shell

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27
Q

In sexual reproductio, where are sperm and eggs deposited?

A

Via cloaca conjugation

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28
Q

What animals belong in Class Cephalopoda?

A

Squid, Octopus, and Nautilus

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29
Q

What type of nervous system do cephalopods possess?

A

A highly developed nervous system with vertabrae like eyes

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30
Q

What is the largest invertabrates?

A

Giant squid

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31
Q

How do giant squids move?

A

By jet propulsion

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32
Q

What special camouflage does the giant squid have?

A

Chromatophores in the skin help change skin colors

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33
Q

What is the internal shell in giant squid called?

A

pen

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34
Q

How does the the octopus look for prey?

A

by crawling across the bottom

35
Q

What animals are in Class Polyplacophora?

A

Chitons

36
Q

What makes up Phylum Annelida?

A

The segmented worms

37
Q

What type of worms are segmented?

A

Earthworms and Leeches

38
Q

What type of digestive system do segmented worms have?

A

One way digestive system with a mouth and anus

39
Q

What are the classes located in Phylum Annelida?

What animals are in each class?

A

Class Polychaeta: Marine worms
Class Oligochaeta: Earth Worms
Class Hirudinea: Leeches

40
Q

Marine worms are ____________ _________ __________ and featherduster worms.

A

Marine worms are preditory clam worms.

41
Q

What are the internal partitions called in earthworms?

A

Septa

42
Q

What are Seta?

A

External bristles w/turn into parapoda

43
Q

What type of circulatory system do earthworms have?

A

A closed circulatory system with 5 pairs of aortic arches or hearts

44
Q

What digs through the soil as earthworm feeds on organic matter?

A

Prostomium

45
Q

What is the earthworm equivalent of a stomach?

A

gizzard

46
Q

Are earthworms hermaphroditic?

A

Yes

47
Q

How do leeches move?

A

With two suckers used for locamotion

48
Q

What invertabrates are located in Subphylum Chelicerata?

A

Scorpions, Spiders, Ticks, and mites

49
Q

Chelicera have?

A

Fangs and Sucking mouth

50
Q

How do you identify a brown recluse?

A

Has a fiddle on cephlothorax

can be found in old clothes and garage storage areas

51
Q

Who can a black widow kill?

A

Infants, Pets, and Older people

52
Q

Where does the wolf spider carry it’s babies?

A

on its back

53
Q

In addition to Lyme Diease, what other diease can ticks carry?

A

Rocky Mt. Spotted fever

54
Q

What type of organism is a scorpion?

A

Transitional organism

55
Q

What was the 1st Arthropod to live on land?

A

Scorpion

56
Q

What type of Chelicerates are microscopic?

A

Mites

57
Q

What do chiggers salivary secretions do?

A

Causes tissue to harden into a strawlike tube called a stylosome

58
Q

What is a Chelicerate that is used to detect lipopolysaccride layer on bacteria?

A

Horseshoe crab

59
Q

What makes up Subphylum Crustacea?

A

Shrimp, Barnacles, Crayfish, Lobsters and Crabs

60
Q

What kind of mouth do invertabrates in Subphylum Crustacea have?

A

A chewing mouth with mandibles and a maxilla

61
Q

What are the cephlothorax of crustaceans covered in?

A

By a carpace

62
Q

What animals are in the Order Decapoda?

A

Crabs, Shrimp, Lobsters, and crayfish

63
Q

What are the characteristics of Decapoda?

A

10 legs, 2 body regions, gills, carapace

64
Q

What is a immature female crab called?

A

A she crab or salle

65
Q

What is a mature female crab called?

A

Sook

66
Q

What are the differences between male and female crabs?

A

Female-Painted red claws, wide underbelly

Male-Painted blue claws, Narrow underbelly

67
Q

What is special about crayfishes mouth?

A

Mandibles for crushing
2 pairs of maxilla->
1 for food
2 is for pushing water over gills

68
Q

Are barnacles hermaphroditic?

A

Yes

69
Q

What invertabrates make up Phylum Arthropoda?

A

Centipedes, Millipedes

70
Q

What are Predacious w/posionous bite, carniverous and fast moving arthropods?

A

Centipedes

71
Q

What are arthropods that are herbivores, slow moving and roll into a ball when threatened?

A

Milipedes

72
Q

What is the study of insects?

A

Entomology

73
Q

What are the three body regions of animals of class insecta?

A

Head, thorax and abdomen

74
Q

What are the Sensory Receptors in insects?

A

Sensory setae like structures
Typanum-Hearing
Pheromoes-Communications

75
Q

What are the 5 Major orders in Class insecta?

A 
Coleoptera (Beetles)
Lepidoptera (Moth and butterflys)
Termites
Diptera (Flies and Mosquitos) 
Orthopoda (Cockroaches and Roaches)
76
Q

What do Japanese beetles do?

A

Damages Lawns

77
Q

What does the Titan Beetle have?

A

A very painful bite

78
Q

What does the Dung Beetle eat?

A

Feces

79
Q

What is the difference between butterflies and moths?

A

Butterflies feed during the day, hold wings vertically, have fleshy catapillar

Moths feed at night, hold wings horizontally, have a hairy catipillar, and fuzzy atenae

80
Q

What lives inside a termite?

A

Protists that digest the wood

81
Q

What does the Green bottle fly eat?

A

Dog feces, rotten trash

82
Q

What kind of mouth does the housefly have?

A

Spongelike mouth parts

83
Q

What do mosquitos sense?

A

CO2, Sweat, and warmth

Biology 102 (16 decks)

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