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BIO 2135, Animal Form and Function > Bryozoa > Flashcards

Bryozoa Flashcards

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1
Q

The body cavity of the second division of the deuterostome body.

A

Mesocoel

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2
Q

What is the body plan formed from?

A

Body formed from polypid and cystid

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3
Q

What is the cecum

A

A bleb off the main tubular digestive system where food comes in, gets digested, and then the waste goes back out into the same tube as it came in. Nutrients filtered out through the bottom of cecum.

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4
Q

Define the funiculous

A

Nutrient transport tube that stem from the bottom of the cecum.

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5
Q

What three things define lophophorates?

A

Tripartate coelom
Lophophore
U-shaped gut

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6
Q

Define tripartite coelom

A

Refers to enterocoely. Occurred because three pouches of endoderm blebbed off to form three pouches of mesoderm.

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7
Q

How the bryozoa colony grows

A

budding

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8
Q

What two components make up the body of bryozoa?

A

polypids and cystids

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9
Q

What is a lophophore?

A

A ring of ciliated tentacles surrounding the mouth of the organism

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10
Q

What is the name of the bryozoan cell that starts a colony

A

Ancestrula

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11
Q

What is a colony of bryozoans

A

Zoarium (cross between zoo and aquarium?)

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12
Q

Casing that bryozoans live in

A

Zoecium

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13
Q

What are the name of the organ tissues that live inside the zoecium

A

cystids

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14
Q

What is the polypide

A

the part of the bryozoans that is the lophophore

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15
Q

What is special about the cilia of the lophophore on the bryozoans

A

They are hollow with longitudinal and circular muscles, allowing for very delicate movement

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16
Q

What is the cavity within the tentacles of the lophophore called?

A

Mesocoele

17
Q

What coelomate cavity contains the ganglion?

A

The protocoele

18
Q

What is a funiculus?

A

a channel that transports nutrients from the cecum to other parts of the body

19
Q

What is a statoblast?

A

An egg-like structure that survives the winter and contains bryozoan cells, which are propogated in the spring.

20
Q

Since the bryozoite is a tripartate coelom, each coelom is associated with what part of the body? (This is kinda nasty)

A

Mesocoel - lophophore
Protocoel - epistome
Metacoel - body cavity

21
Q

What is a structure above or covering the mouth?

A

epistome

BIO 2135, Animal Form and Function (18 decks)

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