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Zoology Lecture Unit 3 > Phylum Chordata > Flashcards

Phylum Chordata Flashcards

1
Q

Phylum Chordata

Germ layers?

A

Triploblastic : Coelomate

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2
Q

Phylum Chordata

Digestive tracts?

A

Complete digestive tracts

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3
Q

Phylum Chordata

Feeding behavoirs?

A

Predator, herbivores, filter feeders, fluid feeders

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4
Q

Phylum Chordata

Respiratory structures?

A

Lungs
Gills
Pharynx

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5
Q

Phylum Chordata

Excretory structures?

A

Kidneys

Pharynx

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6
Q

Phylum Chordata

Skeleton types?

A

Hydrostatic skeleton

Endoskeleton

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7
Q

Phylum Chordata

Endoskeleton composition?

A

Calcium phosphate

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8
Q

Phylum Chordata

Symmetry?

A

Bilateral symmetry

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9
Q

Phylum Chordata

Circulatory system?

A

Closed + heart

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10
Q

Phylum Chordata

How do they control metabolism?

A

Thyroid gland and endostyle

synapomorphy

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11
Q

Phylum Chordata

Big 4 Chordate characteristics

A

Notochord
Pharyngeal gill slits
Dorsal or hollow nerve cord
Post-anal tail

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12
Q

Phylum Chordata

Notochord shape and function?

A

Rod-shaped for support

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13
Q

Phylum Chordata

Pharyngeal gill slits / pouch shape and function?

A

Slot-shaped to increase surface area for gas exchange

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14
Q

Phylum Chordata

Dorsal hollow nerve cord shape and function?

A

Tube shaped for increased surface area for neural transmission

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15
Q

Phylum Chordata
Dorsal hollow nerve cord
“Increases ___
Increases ___”

A

Increases bandwidth

Increases number of simultaneous nerve impulses

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16
Q

Phylum Chordata

Post-anal tail description

A

Dorsal nerve cord + notochord stick out posteriorly from the body

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17
Q

Phylum Chordata

Post-anal tail function

A 
Balance
Communication
Protection
Climbing
Swimming
Insulation

Function indicated by shape

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18
Q

Phylum Chordata
Subphlyum Urochordata
Common name?

A

Tunicates

Sea squirts

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19
Q

Phylum Chordata
Subphlyum Urochordata
Adult motility vs Larvae motility?

A

Sedentary adults

Motile larvae

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20
Q

Phylum Chordata
Subphlyum Urochordata
Solitary or colonial?

A

Both

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21
Q

Phylum Chordata
Subphlyum Urochordata
Feeding behavior

A

FIlter feeders

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22
Q

Phylum Chordata
Subphlyum Urochordata
Digestive tract water path?

A

Incurrent siphon -> Pharynx -> outcurrent siphon

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23
Q

Phylum Chordata
Subphlyum Urochordata
Pharynx diffuses

A

Ammonia out
CO2 out
O2 in

24
Q

Phylum Chordata
Subphlyum Urochordata
Digestive tract food path?

A

Incurrent siphon -> pharynx -> cilia moves to the mouth -> stomach -> intestine -> anus -> outcurrent siphon

25
Phylum Chordata Subphlyum Urochordata Monoecious or dioecious?
Monoecious
26
Phylum Chordata Subphlyum Urochordata Fertilization type?
External fertilization
27
Phylum Chordata Subphlyum Urochordata Larvae "Big 4" and ___
Motile
28
Phylum Chordata Subphlyum Cephalocordata Common name?
Amphioxus
29
Phylum Chordata Subphlyum Cephalocordata Big 4
Notochord Pharyngeal gill slits Dorsal or hollow nerve cord Post-anal tail
30
Phylum Chordata Subphlyum Cephalocordata Fin types?
Caudal fin Dorsal fin Metaplural folds
31
Phylum Chordata Subphlyum Cephalocordata Caudal fin function?
Forward thrust
32
Phylum Chordata Subphlyum Cephalocordata Dorsal fin function?
Prevent roll
33
Phylum Chordata Subphlyum Cephalocordata Metaplural fold function?
Steering
34
Phylum Chordata Subphlyum Cephalocordata Feeding behavior?
Filter feeding
35
Phylum Chordata Subphlyum Cephalocordata Digestive tract path for water?
Oral hood -> pharynx -> pharyngeal gill slits -> atrium -> atriopore
36
Phylum Chordata Subphlyum Cephalocordata Digestive tract path for food?
Oral hood -> pharynx -> intestine -> hepatic cecum -> intestine -> anus
37
Phylum Chordata Subphlyum Cephalocordata Pharynx diffuses
Ammonia out CO2 out O2 in
38
Phylum Chordata Subphlyum Craniata Synapomorphy
Cranium
39
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Common name?
Hagfishes
40
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Lack:
Jaws Paired appendages Vertebrae
41
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Retain:
Notochord
42
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Feeding mechanism?
Detritovores: Eat dead bodies
43
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Early (1st) hagfish eat the ___
Eyes
44
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti On-time (2nd) hagfish eat the ___
Enter mouth and eat intestines from inside
45
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Late (3rd) hagfish eat the ___
Muscle
46
Phylum Chordata Subphlyum Craniata Infraphylum Hyperotreti Anadromous
Hatch in freshwater Adults live in saltwater Return to freshwater to breed
47
Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Synapomorphy?
Vertebrae
48
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi Common name? ```
Lampreys
49
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi Lack: ```
Jaws | Paired appendages
50
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi Have: ```
Vertebrae | Notochord
51
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi Larvae feeding behavior? ```
Filter feeders
52
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi Adult feeding behavior? ```
Fluid feeders
53
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Gnathostomata Synapomorphy? ```
Protrusible jaws
54
``` Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Gnathostomata Why are they awesome predators? ```
Protrusible jaws and paired appendages
55
Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Gnathostomata "Gnatho-" "-stoma" "-ta"
Gnatho- = jaw - stoma = mouth - ta = -ed
56
Phylum Chordata Subphlyum Craniata Infraphylum Vertebrata Superclass Petromyzontomorphi "Petro-" "-myzonto-" "-morphi"
``` Petro = rock myzonto = suck morphi = shape ```

Zoology Lecture Unit 3 (9 decks)

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