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Bio 121 lab > lab6 > Flashcards

lab6 Flashcards

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Biology 101 flashcards
1
Q

Parazoa are _____ and have _____ but do not have ________

A

multicellular
differentiated cells
true tissues

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2
Q

mollusks protect their bodies with

A

hard shells made of calcium carbonate

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3
Q

A body plan refers to

A

the number of tissue layers which make up an animals body and the presence of absence of a coelom (internal body cavity)

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4
Q

sponges made of

A
  • spongin

- spicules of calcium carbonnate or silica

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5
Q
  1. sponge phylum is _______
  2. Our model organism is ______
  3. it’s subphylum is ____
  4. It’s symmetry is ____
  5. Reproduction is _____
  6. It’s habitat is _______
  7. food/energy is obtained by
  8. sessile or motile
  9. Some adaptations are ________
  10. Some friends are _________
A
  1. porifera
  2. grantia
  3. parazoa
  4. none
  5. Hermaphroditic, also asexual by fragmentation
  6. coastline of N. A. (intertidal regions)
  7. filter feeding
  8. motile gametes or something
  9. It is made of spongen and silica so their relatively indigestible
  10. Aplysina, Spongilla
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6
Q
  1. Jellyfish phylum is _______
  2. Our model organism is ______
  3. it’s subphylum is ____
  4. It’s symmetry is ____
  5. Reproduction is _____
  6. It’s habitat is _______
  7. food/energy is obtained by
  8. sessile or motile
  9. Some adaptations are ________
  10. Some friends are _________
  11. Body plan is
  12. have tentancles covered with cells called
A
  1. Cnidaria
  2. Hydra
  3. Eumetazoa
  4. radial
  5. Seperate sexes, also asexual by budding
  6. freshwater, sloughs, streams
  7. A gastrovascular cavity (mouth/anus)
  8. motile by
  9. Can shrink to a small size very rapidly
  10. Obelia, Sea Anemone, Coral, Portuges Man-of-War
  11. Diploblastic acoelomate
  12. Cnidoblasts (which contain nematocysts)

Doesn’t have medusa stage

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7
Q

Sponges internal cavity is called a

A

spongocoel

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8
Q

Water and wastes leave spongocoel through the ______

A

osculum

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9
Q

hermaphraditic

A

produces both male and female gametes

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10
Q

Eumetazoa have ____ and _____

A

true tissues and organs

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11
Q

Diploblastic has _____ (2)

It is held together by

A

outer layer of epidermis(from ectoderm)
inner layer of gastrodermis(from endoderm)

held together by a mesoglea

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12
Q

Do cnidarians have muscle tissue

A

No but they have muscle fibers

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13
Q

contraction of cnidarian muscle fibers coordinated by

A

the nerve net ( a diffuse group of nerve cells spread throughout the body)

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14
Q

When the mouth/anus of a cnidarian is closed

A

the gastrovascular cavity becomes a hydrostatic skeleton (meaning the body is supported by water pressure)

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15
Q

Polyps are ______
They are usually ______
with a _______ and ________
and attached to surfaces by _______

A
  1. part of a cnidarian life cycle,
  2. sessile forms
  3. body column, crown of tentacles surrounding the mouth/anus
  4. means of a basal disc
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16
Q

Medusa are________
which are _________
and have their tentacles _________

A
  1. basically upside down
  2. free swimming
  3. have their tentacles hanging beneath a dome-shaped body
17
Q
  1. Flatworm phylum is _______
  2. Our model organism is ______
  3. it’s subphylum is ____
  4. It’s symmetry is ____
  5. Reproduction is _____
  6. It’s habitat is _______
  7. food/energy is obtained by
  8. sessile or motile
  9. Some adaptations are ________
  10. Some friends are _________
  11. Body plan is
  12. type of digestive sytem
A
  1. Platyhelminthes
  2. Dugesia
  3. Eumetazoa
  4. bilateral
  5. Usually sexual, hermaphroditic though usually cross fertilize, asexually by splitting into two different parts
  6. freshwater
  7. Carnivore of small aquatic animals, scavenger of almost any organic material
  8. motile, glides on a film of mucus by producing small muscular waves and cilia action
  9. Formation of true muscle cells as opposed to just muscle fibers
  10. Tapeworm (Taenia), Chinese Liver Fluke
  11. Triploblastic acoelomate
  12. Branched Gastrovascular cavity
18
Q

mesoderm

A

misture of cells and fluids which lies between the endoderm and ectoderm

19
Q

Platyhelminthes

A

has a mouth/anus at the end of pharynx (a branching mechanism to allow nutirents to all parts of the body)

20
Q
  1. Nematode phylum is _______
  2. Our model organism is ______
  3. it’s subphylum is ____
  4. It’s symmetry is ____
  5. Reproduction is _____
  6. It’s habitat is _______
  7. food/energy is obtained by
  8. sessile or motile
  9. Some adaptations are ________
  10. Some friends are _________
  11. Body plan is
  12. type of digestive system
A
  1. Nematoda
  2. Turbatrix
  3. Eumetazoa
  4. Bilateral
  5. Seperate sexes
  6. Rotting fruits and vegetable
  7. a whip like motion to stir up food
  8. motile by a whip like motion
  9. Pharynx and tubular gut are more efficient for digestion
  10. C. elegans, Ascaris, Pinworm
  11. triploblastic pseudocoelomate
  12. tubular gut
21
Q

What is the difference between eumetazoa and parazoa

A

(Someone message me)

22
Q

Why is cephalization important in the evolution of more complex animals

A

(someone message me)

23
Q

Compare a gastrovascular cavity to a tubular gut

A

(someone message me)

Bio 121 lab (8 decks)

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