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Biology Lab > Exercise 18 > Flashcards

Exercise 18 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What are the four animal phyla?

A
  1. Porifera
  2. Cnidaria
  3. Platyhelminthes
  4. Rotifera
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2
Q

Porifera

A
  • sponges
  • asymmetrical
  • don’t have tissue
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3
Q

Cnidaria

A
  • jellyfish

- radial symmetry (circular)

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4
Q

Platyhelminthes

A

bilateral symmetry

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5
Q

Rotifera

A

bilateral symmetry

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6
Q

Animal characteristics

A
  1. multi-cellular
  2. heterotrophic
  3. diploid; sexual reproduction more common
  4. motility
  5. larva form in many
  6. germ layers
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7
Q

Porifera body organization

A

none

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8
Q

Porifera level of organization

A

cell specialization

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9
Q

Porifera body support

A

spicules, spongin fibers

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10
Q

Special characteristics of Porifera

A

pores, spongocoel, osculum, choanocytes (collar cells)

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11
Q

Collar cells

A

grab food

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12
Q

How are sponges classified?

A

based on what skeletal spicules they have

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13
Q

Class Calcarea

A

fragile

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14
Q

Class Demonspongiae

A

spongin fibers

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15
Q

Cnidaria habitat

A

mostly marine

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16
Q

Cnidaria body organization

A

radial symmetry

17
Q

Cnidaria level of organization

A

tissue (ectoderm and endoderm only)

18
Q

Cnidaria body support

A

hydrostatic gut

19
Q

Cnidaria life cycle

A

sexual reproduction, larva = planula, asexual reproduction

20
Q

Cnidaria special characteristics

A

nematocysts, polyp, medusa

21
Q

Three classes of cnidarians

A
  1. Hydrozoa
  2. Scyphozoa
  3. Anthozoa
22
Q

Class Hydrozoa

A

possesses both polyp and medusa stages

- hydra, Portuguese Man-of-War

23
Q

Class Scyphozoa

A

Medusa only

- jellyfish

24
Q

Class Anthozoa

A

Polyp only

- corals, sea anemones, sea fans

25
Q

Nematocysts

A

capsule-like organelles within the stinging cells of cnidarians

26
Q

Examples of Platyhelminthes

A

flatworms (tapeworms, Planaria, flukes)

27
Q

Platyhelminthes body organization

A

bilateral symmetry, head, incomplete gut

28
Q

Platyhelminthes level of organization

A

organ system (all three germ layers)

29
Q

Platyhelminthes special characteristics

A

brain, flame cells

Biology Lab (6 decks)

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