Lab Ex 40 Survey of the Animal Kingdom - Echinodermata, Hemichordata, & Chordata Flashcards

0
Q

Protostomes

A

Annelids, mollusks, & arthropods; blastopore gives rise to mouth

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1
Q

Deuterostomes

A

Blastopore gives rise to anus

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2
Q

Ossicles

A

Internal skeleton of Echinoderms made of calcareous plates called these, usually with spines protruding through a thin layer of skin

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3
Q

Water vascular system

A

Echinoderms have this consisting of a series of coelomic water-filled canals with hollow projections called tube feet

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4
Q

Tube feet

A

Hollow projections of the water vascular system that help move Echinoderms

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5
Q

Aboral

A

Anus of sea star on this upper surface

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6
Q

Dermal gills

A

Respiration by diffusion that surrounds the blunt spines of sea stars

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7
Q

Pedicellariae

A

Pincerlike structures of Echinoderms used to remove debris from the surface

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8
Q

Madreporite

A

Sieve connecting the water vascular system with the environment (Echinoderms)

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9
Q

Ambulacral grooves

A

Where tube feet protrude from

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10
Q

Test

A

Ossicles are fused into a solid shell called this

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11
Q

Aristotle’s lantern

A

Small internal structure of 5 teeth (sea urchins & sand dollars)

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12
Q

Tentacles

A

Modified tube feet of sea cucumbers

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13
Q

Hemichordata

A

Share 2 features with chordates - dorsal nerve cord, part of which is hollow, & pharyngeal slits

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14
Q

Pharyngeal slits

A

Openings in the throat that filter water that has entered through the mouth

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15
Q

Acorn worms

A

Soft-bodied marine animals that burrow in sand or mud; bodies are fleshy & contractile and consist of a proboscis, a collar, & a trunk

16
Q

Chordates

A

Characterized by a dorsal hollow nerve cord, a notochord, pharyngeal slits, & a postnatal tail

17
Q

Atrium

A

After water passes by the arches it moves into a surrounding chamber called this (in lancelets)

18
Q

Atriopore

A

Water leaves the bodies of lancelets through this

19
Q

Ammocoete

A

Larva of lamprey

20
Q

Buccal funnel

A

Mouths of agnathans is at the center of this round structure & is armed with horny teeth & a rasping tongue

21
Q

Endoskeleton

A

Cartilaginous skeleton of sharks, skates, & rays

22
Q

Lateral line

A

Runs along each side of the bodies of sharks, skates, & rays & contains sensory cells to detect slight vibrations

23
Q

Operculum

A

Gills of bony fishes are protected by a movable gill cover called this

24
Lateral-line system
Along each side & branching over the heads of most fishes is this, consisting of sensory pits in the skin; pits detect water currents & predators or prey that may be moving near the fish
25
Tadpole
Aquatic larval stage of amphibians
26
Chorion
Outermost membrane of reptile eggs
27
Amnion
Encases the developing reptile embryo within a fluid filled cavity
28
Yolk sac
Provides food from the yolk for the embryo via blood vessels connecting to the embryo's gut (reptiles)
29
Allantois
Surrounds a cavity into which waste products from the embryo are excreted
30
Mammary glands
Mammals nourish their young with milk produced by these of the mother