Lab Practical Vocab Flashcards

1
Q

Deuterostomes

A

Coelomate, bilateral symmetry, radial cleavage- blastopore becomes anus

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2
Q

Protostomes

A

Coelomate, spiral cleavage-blastopore become mouth

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3
Q

Morula

A

Solid ball of cells

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4
Q

Blastomeres

A

Equally sized cells arising from cleavage

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5
Q

Invaginate

A

Invert in gastrulation

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6
Q

Phylum Porifera

A

Sponges, no germ layers

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7
Q

Pinacocytes

A

Flattened cells on outside of sponge

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8
Q

Choanocytes

A

Flagellated cells that aid in filter feeding

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9
Q

Mesohyl

A

Middle layer containing ameboid cells

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10
Q

Spongocoel

A

Inside chamber

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11
Q

Osculum

A

Excurrent opening

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12
Q

Ostia

A

Incurrent opening

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13
Q

List sponges in order of least to most complex

A

Asconoid, syconoid, leuconoid

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14
Q

3 classes of Porifera

A

Calcarea- calcerous spicules (only group with asconoid)
Hexactinellida- glass like spicules
Demospongiae- spongin fibers or siliceous spicules, 80% of all sponges

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15
Q

Phylum Cnidaria

A

Diploblastic, radial symmetry.

Includes: hydras, jellyfish, etc.

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16
Q

Oral vs aboral

A

Oral side has mouth

Aboral side is opposite

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17
Q

Polyp stage

A

Sessile, sexual or asexual, has gastrozooids and gonozooids

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18
Q

Cnidae

A

Specialized organelles

Ex:// nematocysts—stingers

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19
Q

3 major classes of Cnidaria

A

Hydrozoa- polyp and medusa stage alternate
Scyphozoa- medusa stage is dominant (jellyfish)
Anthozoa- only polyp stage (coral and anemone)

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20
Q

Phylum Platyhelminthes

A

Triploblastic, acoelomate, spiral cleavage

Includes: flatworms, tapeworms, flukes

21
Q

3 classes of Platyhelminthes

A

Cestoda- tapeworms
Trematoda- flukes
Turbellaria- flatworms

22
Q

Protonephridia

A

Aids in gas exchange

23
Q

Phylum mollusca

A

Triplobalstic, bilateral symmetry, coelom ate.

Includes: snails, slugs, clams, oysters, octopuses, and squids

24
Q

3 main body parts of mollusc

A

Head foot- sensory and locomotive
Visceral mass- organ processes
Mantle- secretes shell

25
Q

Radula

A

Horny tongue some molluscs possess

26
Q

3 classes of molluscs

A

Gastropoda- snails and slugs
Bivalvia- clams and oysters
Cephalopoda- octopuses and squids

27
Q

Umbo

A

Swollen protrusion at the anterior end of the clam

28
Q

Pallial line

A

Where the mantle attaches to the shell

29
Q

Foot (of clam)

A

Used for movement

30
Q

Phylum Annelida

A

Triploblastic, coelomate, bilateral symmetry

Includes: earthworms, leeches, marine worms

31
Q

Metamerism

A

segmentation

32
Q

Setae

A

Line of segmentation

33
Q

3 classes of Annelida

A

Polychaeta- marine worms
Hirudinea- leeches
Oligochaete- earthworms

34
Q

Phylum Nematoda

A

Triplobalstic, bilateral symmetry, pseudocoelom

Includes: roundworms

35
Q

Ecdysis

A

Shedding external cuticle to allow growth

36
Q

Phylum Arthropoda

A

Triploblastic, coelomate, bilateral symmetry

Undergoes ecdysis, and shows metamerism

37
Q

Tagmata

A

Functional unit arising from segmentation

38
Q

3 main Tagmata in Arthropoda

A

Head
Thorax
Abdomen

Head and thorax fused is called cephalothorax

39
Q

4 subphyla of Arthropoda

A

Chelicerata- have chelicerae/pincers. No antennae. Contain class Arachnida and merostomata (horseshoe crabs)
Crustacea- 1 pair of antennae, mandibles, biramous (2 branched paired appendages) Contain crabs, lobsters, shrimp
Myriapoda- uniramous. Class Chilopoda (centipedes) and Diplopoda (millipedes)
Hexapoda- insects

40
Q

Phylum Echinodermata

A

Strictly marine, triploblastic, coelomate, pentamorous radial symmetry
Includes: sea stars, basket stars, sea urchins, sand dollars, sea cucumbers, and sea lilies

41
Q

5 classes of Echinodermata

A
Asteroidea- sea stars
Ophiuroidea- brittle stars, basket stars
Echinoidea- sea urchins, sand dollars
Holothuroidea- sea cucumbers
Crinoidea- sea lilies
42
Q

Pedicellariae

A

Claws- tiny pincer like structures

43
Q

Madreporite

A

Light colored circular structure on aboral side of starfish

44
Q

Ambulacral groove

A

Deep groove running down midline of each arm from mouth

45
Q

Phylum Chordata

A

4 unique characteristics:

Notochord, dorsal hollow nerve cord, pharyngeal gill slits, post anal tail

46
Q

3 subphyla of Chordata

A

Urochordata- tunicates, strictly marine, typically sessile
Cephalochordata- amphioxus, lancelets, look like small simple fish
Vertebrata- have a dorsal spinal column

47
Q

Subphylum vertebrata

A

Active lifestyle, developed brain, cranium

48
Q

7 classes of vertebrata

A

Agnatha- jawless fish (hagfish)
Chondrithyes- cartilaginous fishes (sharks)
Osteichthyes- bony fishes (all other fish)
Amphibia- frogs, salamanders, etc
Reptilia- lizards, snakes, turtles
Aves- birds
Mammalia- mammals