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BIOL 110 > Misc. > Flashcards

Misc. Flashcards

1
Q

Which life stage of the pork tapeworm specifically presents a dangerous health hazard to humans?

A

Cysts

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2
Q

Platyhelminthes and cnidaria have the same number of germ layers in early development

A

False

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3
Q

How do turbellaria feed?

A

Extend pharynx, excrete digestive enzymes, suck up remains

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4
Q

Which grade of organization are the first animals found in?

A

Cellular grade

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5
Q

How do single-celled eukaryotes resperate?

A

Passive diffusion: Passive gas transfer across cell membrane

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6
Q

Do insects carry oxygen in their blood?

A

No

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7
Q

Do Asteroidea have brains?

A

No. But has central nervous system

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8
Q

Which class of enchinodermata is a top predator?

A

Asteroidea (sea stars)

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9
Q

How do holothurians feed?

A

Sea cucumbers are suspension/deposit feeders

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10
Q

Which class of enchinodermata can cause a barren of not controlled?

A

Echinodis (sea urchins)

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11
Q

What are the 5 key characteristics of chordates?

A

Dorsal nerve cord, notocord, endostyle/thyroid gland, pharyhneal pouches, postanal tail

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12
Q

What structure do all vertebrates have for excretion?

A

Kidneys

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13
Q

How many chambers do vertebrate hearts have?

A

Three

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14
Q

What do all vertebrate red blood cells contain?

A

Hemoglobin

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15
Q

Which direction does water flow over fish gills relative to blood flow?

A

Water flow is opposite to blood flow

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16
Q

In order to osmoregulate, freshwater fish must . . .

A

Pump out excess water via kidneys, have salt-absorbing cells that move salt ions from water into blood

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17
Q

In order to osmoregulate, marine fish must . . .

A

Have salt-secreting cells in gills, salt ions not absorb from waste, kidneys do not absorb salts

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18
Q

In freshwater fish . . .

A

Water is hypotonic (less salty) than fish blood

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19
Q

In marine fish . . .

A

Blood is hypotonic (less salty) than seawater

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20
Q

T. brucei gambiense causes

A

African Sleeping sickness

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21
Q

T. cruzi causes

A

Chaga’s Disease

22
Q

The insect vector for African sleeping sickness are

A

Tsetse flies

23
Q

The insect vector for Chaga’s disease is

A

Kissing bug

24
Q

African sleeping sickness is passed through

A

Bug bites

25
Q

Chaga’s disease is passed through

A

Bug feces

26
Q

Where do T. bruci gambiense replicate in humans?

A

Blood

27
Q

Where does T. cruzi replicate in humans?

A

Cells/Tissue

28
Q

What are the three distinguishing characteristics of Phylum Ciliphora

A

Cilia, nuclear dualism, conjugation

29
Q

What kind of feeding do porifera preform?

A

Saprozoic

30
Q

Do porifera have true tissue?

A

No

31
Q

Are sponges monecious or dioecious?

A

Monecious

32
Q

Do sponges have a ciliated larvae stage?

A

Yes, parenchymula

33
Q

Do cnidaria have true tissue?

A

Yes!

34
Q

How many tissue layers do cnidaria have?

A

2

35
Q

How many tissue layers do poifera have?

A

2

36
Q

Do cnidiaria have mesoderm?

A

No! They are dipbloplasts!

37
Q

Why phylum as a diffuse nerve net?

A

Cnidaria

38
Q

What kind of gastrovascular cavity do cnidaria have?

A

Blind/incomplete gut

39
Q

Do all cnidaria have cnidocytes?

A

Yes

40
Q

Do all cnidaria have a medusa form?

A

No

41
Q

What are the two forces that contribute to cnidocytes firing?

A

Tension and osmotic pressure

42
Q

What kind of epidermis do most free-living platyhelminths have?

A

Cilited cellular

43
Q

What is a major difference between Trematodes and Cestodes?

A

Trematodes have a gut, cestodes do not have a gut

44
Q

What phylum are eucoelomates?

A

Annelids

45
Q

Metamerism

A

The independent movement and function of body segments

46
Q

Which phylums do metamerism occur?

A

Annelids and arthropods

47
Q

Do earthworms have direct or indirect development?

A

Direct development

48
Q

The flame cell is part of which phylum and system?

A

Plathyhelmths excretory system

49
Q

Do freshwater flatworms have direct or indirect development?

A

Direct development

50
Q

Which organisms have ciliated trochophore larvae?

A

Maine annelids, bivalves, marine gastopods

BIOL 110 (5 decks)

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