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From Flashcardlet > Zoo 22-23 > Flashcards

Zoo 22-23 Flashcards

0
Q

Deuterostome

A

Blastopore becomes anus

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1
Q

Echinoderm meaning

A

“Spiny skin”

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2
Q

Protostome

A

Blastopore becomes mouth

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3
Q

Symmetry of Chordates

A

Bilateral

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4
Q

Symmetry of Echinoderms

A

Bilateral morphed into radial (multiples of 5)

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5
Q

Blastopore

A

Opening of archenteron

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6
Q

5 classes of Echinodermata

A 
Asteroidea
Ophiuroidea
Echinoidea
Holothuroidea
Crinoidea
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7
Q

Pedicellariae

A

Tiny jaws at base of spine to protect/keep free of debris/aid in food capture

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8
Q

Metamorphosis

A

Radical body change

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9
Q

Members of Echinoidea

A

Sea urchins, sand dollars, heart urchins

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10
Q

Test

A

Hard shell underneath skin

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11
Q

Periproct

A

Area of anus on aboral surface

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12
Q

Members of Ophiuroidea

A

Brittle star

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13
Q

Madreporite

A

Plate for entryway of water on oral surface

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14
Q

Papillae

A

Protrusion on organ of body

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15
Q

Classification of brittle star

A

Animalia
Echinodermata
Ophiuroidea
Ophiurida

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16
Q

Classification of sea urchin

A

Animalia
Echinodermata
Echinoidea
Camarodonta

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17
Q

Classification of sand dollar

A

Animalia
Echinodermata
Echinoidea
Clypeasteroida

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18
Q

Classification of sea cucumber

A

Animalia
Echinodermata
Echinozoa
Holothuroidea

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19
Q

Ossicles

A

Plates bound by tissues

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20
Q

Respiration of echinoderms

A

Dermal brachia

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21
Q

Metameres

A

Similar body segments

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22
Q

Echinoderms lack what 4 parts

A

Metameres, brain, head region, excretory organs

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23
Q

Parts echinoderms have

A

1) Endoskeleton of ossicles
2) WV system (tube feet/suction)
3) Pedicellariae
4) Complete digestive/hemal system
5) External fertilization/separate sexes
6) Regeneration

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24
Q

Purpose of tube feet

A

Movement and digestion

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25
Q

How to tell gender of echinoderms

A

Cut into arms to find sperm/eggs

26
Q

Ecology of echinoderms

A

Marine, saltwater (oceans), all depths

-predators, particle feeders, one is scavenger

27
Q

Two main similarities of Echino/chor

A

Both dueterostomes and once had same symmetry

28
Q

Placement of 2 phylums

A

Link between vertebrates and invertebrates

29
Q

What does class Echinoidea lack

A

Arms

30
Q

Echinoidea have…? (2)

A

Periproct and test

31
Q

Shape/features/symmetry of urchins

A

Spherical, radial symmetry, medium/long spines, 5 pairs of rows of tube feet

32
Q

Environment of urchins

A

Wavy, rocky areas

33
Q

Features/symmetry of sand dollar

A

Flat, flat test, radial, no spines, have pedicellariae

34
Q

Environment of sand dollar

A

Ocean floor, buried in sand

35
Q

Main features of Echinoidea (5)

A

1) 5 teeth
2) Aristotle’s lantern
3) Coiled digestive system
4) External fertilization
5) Closed ambulacral grooves

36
Q

Aristotle’s lantern

A

Where teeth attach near mouth in Echinoidea

37
Q

Class that’s greatest in number

A

Ophiuroidea

38
Q

Characteristics of arms of Ophiuroidea

A

No pedicellariae or papillae, closed ambulacral grooves, covered with ossicles, very flexible

39
Q

Movement of Ophiuroidea

A

Flexible arms to pull around

40
Q

Characteristics of Ophiuroidea

A

1) 5 moveable plates for jaws
2) No anus so no intestines
3) External fertilization/separate sexes
4) In deep water where no light

41
Q

Shape of Holothuroidea

A

Resemblance of vegetables, elongated

42
Q

External features of Holothuroidea

A

Short ossicles (softer), tube feet located near mouth (sole), tentacles around mouth

43
Q

Internal features of Holothuroidea

A

Coelem contains madreporite, digestive system empties into cloaca

44
Q

Cloaca

A

Collecting center for reproduction and waste

45
Q

Eviscerate

A

Throwing up organs as defense

46
Q

Defense of Holothuroidea

A

Eviscerate- can regenerate

47
Q

Members of Crinoidea

A

Sea lilies, feather stars

48
Q

Features of Crinoidea

A

1) Primitive
2) Attached to something
3) Deep water
4) Appendages x5
5) Body disc/plates for attachment
6) Mouth/anus on oral surface
7) Common fossils

49
Q

What Crinoidea is missing

A

1) Tubefeet
2) Madreporite
3) Pedicellarae
4) Spines

50
Q

Members of Asteroidea

A

Sea stars

51
Q

External features of Asteroidea

A

1) Radial (x5)
2) Central disc
3) Epidermis over spine covered ossicles
4) Tube feet on ambulacral groove

52
Q

Stereom

A

Internal mesh work structure in Asteroidea

53
Q

Features on aboral side of Asteroidea

A

Anus, pedicellariae, papillae (help w/ respiration), madreporite

54
Q

Internal features of Asteroidea

A

1) 2 stomachs (cardiac/pyloric)
2) Water vascular system
3) Hemal system
4) Nervous system
5) Separate sexes (external fertilization)

55
Q

Purpose of water vascular system

A

Movement, food gathering, excretion, respiration

56
Q

Autonomy

A

Regeneration from just an arm

57
Q

Hemal system of Asteroidea

A

?

58
Q

Nervous system of Asteroidea

A

?

59
Q

Ambulacral groove

A

Ridges along aboral side of arms

60
Q

8 Characteristics of phylum Chordata

A

1) Bilateral symmetry
2) Notochord
3) Dorsal tubular nerve cord
4) Pharyngeal pouches
5) Endostyle/thyroid gland
6) Postanal tail
7) Complete digestive system
8) Segmentation

61
Q

Notochord

A

?

62
Q

3 subphylums of Chordata

A

1) Cephalachordata
2) Urochordata
3) Vertebrata

From Flashcardlet (13 decks)

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