lab 5 Flashcards

1
Q

what type of tissue layers nematoda

A

triploblastic, w well defined organs

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2
Q

what type of gut nematoda

A

complete gut

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3
Q

types of ceolums in nematoda

A

acoelomate and pseudocoelom

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4
Q

what does pseudocoelom function as?

A

hydrostatic skeletonwha

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5
Q

what is eutely

A

fixed number of cells in adult, some small nematodes

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6
Q

cuticles in nematoda

A

most have nonliving cuticle, thick cuticles limit growth and are moulted

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7
Q

paracitic nematoda

A

either have simple (no intermediate) or complex life cycle

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8
Q

what are only present w thick cuticles

A

longitudinal muscles

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9
Q

phylum nematoda
example

A

round worm
ascaris- endoparaciticp

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10
Q

pseudocoelum

A

food filled body cavity parially covered in mesoderm

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11
Q

cuticle

A

barrier between the animal and its environment

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12
Q

longitudinal muscles

A

only move by contracting the long muscles on either side of their body and wriggling forward.
undulating–> one directoin

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13
Q

dorsal and ventral nerve cords

A

motor and sensory control

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14
Q

how does namatode grow

A

its acellular cuticle, it sheds

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15
Q

phylum nematomorpha

A

horsehair worms
the nasty fuckers

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16
Q

phylum rotifera

A

wheel bearing
cilliated corona

17
Q

ciliated corona

A

locomotion, and movement of food particles toward the mouth

18
Q

acanthocephala

A

spiny headed worms
have spines on proboscis
subclass of rotifera

19
Q

priapula phylum

A

penis worm