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BIO153 Lab Test 2 Vocabulary > Lab 7 > Flashcards

Lab 7 Flashcards

1
Q

Porifera

A

Sponges

i. Class: Calcarea (calcareous sponges)
ii. Class: Hexactinellida (glass sponges)
iii. Class: Demospongia (e.g. bath sponges)

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2
Q

Cnidaria

A

i. Class: Hydrozoa (hydras)
1. Genus: Hydra
ii. Class: Scyphozoa (jellyfish)
1. Genus: Aurelia
iii. Class: Anthozoa (sea anemones, corals)
1. Genus: Metridium

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3
Q

Platyhelminthes

A

Flatworms

i. Class: Turbellaria (free-living flatworms)
1. Genus: Dugesia or Planaria
ii. Class: Trematoda (flukes)
iii. Class: Cestoda (tapeworms)

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4
Q

Annelida

A

Segmented worms

i. Class: Polychaeta
ii. Class: Oligochaeta (e.g. earthworms)
1. Genus: Lumbricus
iii. Class: Hirudinea (e.g. leeches)
1. Genus: Hirudinea

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5
Q

Mollusca

A

Molluscs

i. Class: Polyplacophora (chitons)
ii. Class: Bivalvia (bivalves – e.g. clams)
iii. Class: Gastropoda (e.g. snails & slugs)
iv. Class: Cephalopoda (e.g. squids & octopi)
1. Genus: Loligo

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6
Q

Superphylum

A

Lophotrochozoa

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7
Q

Acoelomate

A

having no body cavity

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8
Q

Anterior

A

near or towards the head end

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9
Q

Asymmetry

A

no plane of symmetry (e.g. sponges)

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10
Q

Atrium

A

the internal cavity of a sponge

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11
Q

Bilateral Symmetry

A

one plane of symmetry (2 equal halves)

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12
Q

Bilateria

A

animals with a head and bilateral symmetry (also have 3 germ layers)

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13
Q

Calcareous

A

made of calcium carbonate

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14
Q

Cephalisation

A

having a head; in Bilateria

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15
Q

Choanocytes

A

flagellated cells found in sponges

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16
Q

Cnidocytes

A

stinging cells in Cnidaria

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17
Q

Coelom

A

fluid-filled body cavity

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18
Q

Coleomate

A

having a coelom fully lined in mesoderm

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19
Q

Diploblastic

A

two germ layers (ectoderm and endoderm)

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20
Q

Distal

A

far from a point of reference

21
Q

Dorsal

A

near or towards the back

22
Q

Ectoderm

A

the outer germ layer formed during embryogenesis

23
Q

Endoderm

A

the inner germ layer formed during embryogenesis

24
Q

Gastrodermis

A

the inner layer of a Cnidarian (derived from endoderm)

25
Q

Gastrovascular Cavity

A

sac-like cavity in Cnidaria

26
Q

Germ Layer

A

cell types in early embryonic development that eventually differentiate

27
Q

Lateral

A

near or towards the left/right side

28
Q

Median

A

near or towards the middle

29
Q

Medusa

A

motile form of Cnidaria

30
Q

Mesoderm

A

the middle germ layer formed during embryogenesis

31
Q

Mesoglea

A

jelly-like substance found between endoderm and ectoderm in diploblasts

32
Q

Nematocysts

A

barbed structure in cnidocytes

33
Q

Nerve Net

A

network of nerve cells in Cnidaria

34
Q

Osculum

A

opening to the atrium of a sponge

35
Q

Pectoral

A

chest/shoulder region

36
Q

Pedal Disc

A

the aboral (bottom) end of an Anthozoan

37
Q

Pelvic

A

relating to the hip region

38
Q

Polyp

A

sessile form of Cnidaria

39
Q

Posterior

A

near or towards the hind end

40
Q

Proximal

A

near to a point of reference

41
Q

Psuedocoelomate

A

having a body cavity that lies between mesoderm and endoderm

42
Q

Radial Symmetry

A

many planes of symmetry; symmetry around a central axis

43
Q

Septa

A

vertical partitions in the gastrovascular cavity of an Anthozoan

44
Q

Sessile

A

stays anchored to the substrate

45
Q

Siliceous

A

made of silica

46
Q

Spicules

A

small skeletal structures in sponges. Often Y - shaped.

47
Q

Spongin

A

a collagen protein found in sponges

48
Q

Triploblastic

A

three germ layers (ectoderm, endoderm and mesoderm)

49
Q

Ventral

A

near or towards the belly

BIO153 Lab Test 2 Vocabulary (4 decks)

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