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Invertaret Zoology > Module 1 > Flashcards

Module 1 Flashcards

1
Q

Pelagic vs benthic

A

Open water va the bottom

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2
Q

Photic zone vs aphotic zone

A

Sunlight vs no sunlight

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3
Q

Neurotic vs oceanic

A

Close to shore vs far from shore

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4
Q

Supralittoral vs littoral vs sublittoral

A

Rarely submerged vs between highest and lowest tides vs always submerged

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5
Q

Planktonic

A

Rely on the water column to move

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6
Q

How do habitats vary by climate

A

Temperature, precipitation, elevation, pressure, wind, humidity, latitude

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7
Q

What are the two types of digestion

A

Extra cellular and intracellular

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8
Q

Four types of feeding:

A

Filter, fluid, deposit, bulk

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9
Q

Extracellular digestion

A

Digest food outside cells

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10
Q

Intracellular Digestion

A

Most invertabrets have an alimentary canal, gastrovascular cavity

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11
Q

Ammonotelic

A

Secrete soluble ammonia

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12
Q

Uricotelic

A

Secrete Uric acid

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13
Q

Circulation in invertebrates

A

Closed or open, open usually has hemolymph

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14
Q

7ways of respirating

A

Gills, book gills, book lungs, pseudotracheae, trachea, pneumostome, ctenidium

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15
Q

Different times of locomotion

A

Jet propulsion, walking, flapping, paddling, flying, pedal, persistatic waves, undulation, flexing

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16
Q

Examples of asexual reproduction

A

Budding, regeneration, parenthogenesis

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17
Q

R selected species

A

Produce more gametes, released into environment,

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18
Q

Acoelomate

A

Lack of a body cavity

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19
Q

Larvae

A

Find ideal habitats, more motile, can have symbiotic relationships

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20
Q

Homology

A

Trait present in common ancestor

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21
Q

Analogy

A

Traits that are not due to common ancestor, result of convergent evolution

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22
Q

3 ways to construct a phylogenetic tree:

A

Analysis of extinct invertebrates, analysis of traits of extant invertebrates, analysis of DNA

23
Q

Monophyletic group

A

A group of organisms that consist of the common ancestor and its descendants

24
Q

Paraphyletic group

A

Common ancestor, including not all of the descendants

25
Q

Polyphyletic group

A

Group of organisms that do not share a common ancestor

26
Q

Synapomorphy

A

Shared trait derived from a common ancestor

27
Q

Simple Metazoa

A

Phylum Placozoa, porifera,Cnidaria, Ctenophora

28
Q

Phylum Porifera

A

Class:

Calcera, Demospongiae, Hexactinellida, Homoscleromorpha

29
Q

Phylum Cnidaria

A 
Subphylum Anthozoa:
Subclass Hexacorallia
Subclass Octocorllia

Subphylum:
Class Cubozoa, Hydrozoa, Scyphozoa, Staurozoa

30
Q

Phylum Ctenophora

A

Class Anura, Tentaculata

31
Q

Cnidaria-Anthozoa- Hexacoralia

A

6 tentacles around mouth, solitary, polyp

32
Q

Cnidaria- anthozoa- octocorallia

A

8 tentacles, colonial, calcareous skeleton

33
Q

Cnidaria- Medusozoa

A

Salt and fresh water

34
Q

Medusoza, scyphozoa

A

Only in saltwater, vary in size, solitary, thick mesoglea with pigmentation, life cycle dominated by the Medusa

35
Q

Medusoza- Cubozoa

A

Box jelly, marine, very small, solitary, transparent, potent, life cycle dominated by Medusa, most derived group

36
Q

Medusoza- Hydrozoa

A

Saltwater and freshwater, colonial, connected by a stolen for the polyp which is the adult, polymorphic

37
Q

Medusoza- Staurozoa

A

Saltwater, mostly shallow, very small, attached Medusa,

38
Q

Cnidocytes

A

Specialized organelle, mostly occurs as a nematocysts, discharged usually in response to pressure, long filament,

39
Q

Respiration in Cnidaria

A

Diffusion across the body wall

40
Q

Circulation in Cnidaria

A

Do not have a circulatory system

41
Q

Nervous system in Cnidaria

A

Nerve net: extends through mesoglea

Some have occlei: eyes

42
Q

Feeding in Cnidaria

A

Passive bulk feeding, extracellular and intracellular digestion

43
Q

Support in Cnidaria

A

Gastrovascular cavity forms hydrostatic skeleton

Some excrete calcium carbonate ie. coral

44
Q

Locomotion in Cnidaria

A

Medusa use jet propulsion that is flexing

Staying upright by aid of statoliths

45
Q

Reproduction in Cnidaria

A

Mostly rely on sexual reproduction to produce planula larva

Budding for asexual reproduction

External fertilization

46
Q

Phylum Placozoa

A

Found in the ocean, transparent, fiborous cells in the middle, use cilia to move,

47
Q

Phylum porifera- class calcarea,

A

Supported by spicules, see achanoids, leuchoids, and synocoid,

48
Q

Phylum Porifera- Class Demospongiae

A

Spicules of Silvia, all are leuconoid, salt water and fresh

49
Q

Phylum porifera- Class Hexactinlleda

A

Glass sponges, synconoid or leucnoid, Deep water

50
Q

Phylum Placozoa

A

Found in the ocean, transparent, fiborous cells in the middle, use cilia to move,

51
Q

Phylum porifera- class calcarea,

A

Supported by spicules, see achanoids, leuchoids, and synocoid,

52
Q

Phylum Porifera- Class Demospongiae

A

Spicules of Silvia, all are leuconoid, salt water and fresh

53
Q

Phylum porifera- Class Hexactinlleda

A

Glass sponges, synconoid or leucnoid, Deep water

54
Q

Phylum Porifera- Class homoscleromorpha

A

Spicules silica, leuconoid, salt water

Invertaret Zoology (3 decks)

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