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Bio Lab 112 > Sponges And Jelly Fish > Flashcards

Sponges And Jelly Fish Flashcards

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Biology 101 flashcards
1
Q

What is a porifera?

A

A sponge

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2
Q

What classes are there for sponges?

A

Calcarea has carbonate spindles, Hexactinellida has silicon spicules, Demospongiae has protein spicules

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3
Q

What is Cnidara?

A

Jellyfish

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4
Q

What are the cell types for sponges?

A

Choancoytes they have flagella to move and use microvillis to capture food, amoebicytes can regenerate themselves, Pinacocytes flattened cells makes border around sponge, mesophyl are extra cellular secreted by amoebocytes.

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5
Q

How does water enter the sponge?

A

Through incurrent canals, radial canals through porocytes

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6
Q

What do Radial canals do?

A

They are lines with chanocytes that have flagellated cells that draw water that contains oxygen and cells into the canal

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7
Q

How does water exist the sponge?

A

Through the oscucolum

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8
Q

How to sponges consume particles?

A

Through food vacuoles in Ostia

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9
Q

What happens if the food is too big?

A

They are digested in pinacocoytes

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10
Q

What is phylum Cnidaria?

A

A jelly fish

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11
Q

How do Cnidaria catch prey?

A

They use cindocytes which contain nematocysts and organelle coiled fiber that they use to stab prey with

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12
Q

How do Cnidaria reproduce?

A

By budding

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13
Q

How does obelia eat?

A

Through feeding polyps with stinging tentacles

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14
Q

How do Obelia reproduce?

A

They do it through both a sexual and sexual reproduction by using reproductive polyp which is asexual and then Medusa which is sexual stage

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15
Q

How many layers do Cnidaria have?

A

They have two layers

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16
Q

What are the layers of Cnidaria?

A

Diploblasts with mesoglea in between them

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17
Q

What are the two body types of Cnidaria?

A

Polyp which is an attached structure and Medusa free floating structure

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18
Q

Which has a larger generation of Cnidaria?

A

Medusas have are larger generation animal polyps are the smaller stage

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19
Q

What is aurelia body made out of?

A

Inner gastrodermis and outer layer epidermis mesoglea in between

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20
Q

What are cindocytes?

A

They are in the tentacles stinging cells

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21
Q

What is the sensory organ for Aurelia

A

Rhopoalium which contains ocelli for light detection

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22
Q

What is the class Anthozoa Metridum?

A

Sea Anemones and corals

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23
Q

What is the class Anthozoa Metridum?

A

Sea Anemones and corals

24
Q

How do females fertilize the eggs for sea anemones and corals?

A

They fertilize the eggs internally

25
Q

What is a coral polyp?

A

Genetically identical polyps that have an exoskeleton at their base and they produce a large structure

26
Q

What symbiotic relationship do coral have?

A

They have it with algae

27
Q

Do sponges have internal digestive cavity?

A

No they don’t

28
Q

What is dermal Ostia?

A

It is a bunch of holes in sponges which are connected to the inner canal

29
Q

Do sponges have choanocytes and if so what are the functions.?

A

They do and it is a lining of flagella’s

30
Q

How do sponges eat?

A

They are filter feeders

31
Q

What is the function of an osculum?

A

Push water out

32
Q

What is the spongocoel?

A

It is the central cavity

33
Q

Do sponges need other sponges to procreate?

A

No because they are hermotrophic which they produce both egg and sperm

34
Q

How is sexual reproduction accomplished in sponges?

A

Through amoebocytes

35
Q

What do choanocytes do?

A

Bring it water

36
Q

Where does water enter the sponge?

A

Through the dermal Ostia

37
Q

Where does the water go through first in sponges?

A

Through the intercurrent canal then they go through the excurrent canal which is connected which opens into the spongocoel

38
Q

What are porocytes?

A

They are tube like cells

39
Q

What are the layers of sponges

A

It’s start with the dermal epithelium then you have the gastrial epithelium which is lined on the inside of the dermal epithelium between these two layers there is mesophyl which there are the exoskeleton of amoebocytes which are spicules that make up the exoskeleton

40
Q

Are Cnidaria symmetrical organisms?

A

Yes they are radically symmetrical

41
Q

Do Cnidaria have gastrovascular cavities and what are their stinging cells called?

A

Yes they do and they have stinging cells that are called cindocytes

42
Q

What does dioplasitc mean for Cnidaria?

A

They have two layers ectoderm and endoderm

43
Q

How is Cnidaria body made?

A

For the outside they have the epidermis then for the middle is the mesoglea then for inside of the Cnidaria they have gastrodermis layer

44
Q

What are nematocysts?

A

They are threads that sting the prey when stimulated

45
Q

What class does Hydrozas do?

A

They are a polyp the produce medusas

46
Q

What does the class Scyphoza do?

A

They are large jellyfish

47
Q

What class does the Cubozoa do?

A

They are box jellyfish

48
Q

What is the Anthzoa class.?

A

Sea anemones and coral

49
Q

How do hydras reproduce?

A

Asexually by forming a bud

50
Q

What is the term used for both sex organs in an organism?

A

Hermaphordistism

51
Q

What are spermaries?

A

They are testies and ovaries

52
Q

Describe the layers of a hydra

A

You have the epidermis, the gastrodermis and a thin layer of mesoglea

53
Q

Where is the mouth located for Aurelia?

A

On the oral center of the concave surface

54
Q

Where is Aurelia’s tentacles?

A

They are fringed on their bodies

55
Q

Where are the Aurelia’s testes and ovaries?

A

The gonads

56
Q

What protective layer do corals have?

A

Limestone

Bio Lab 112 (4 decks)

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