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organism 2 (aebi 211-lab) > Lab 3 > Flashcards

Lab 3 Flashcards

1
Q

Which two phyla are covered in today’s lab?

A

Annelida

Echinodermata

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2
Q

What are metameres?

A

Repeated homologous body segments

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3
Q

What type of skeleton do annelids posses?

A

Advanced hydrostatic skeleton

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4
Q

Which class of annelids is only found in marine environment?

A

Polychaeta

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5
Q

What is the name of the segment of the clamworm that contains the mouth?

A

Peristomium

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6
Q

Name two functions of annelids cuticle.

A

Structural support

Protection

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7
Q

Which organism(s) form today’s lab have/has parapodia?

A

Clamworm (Polychaeta)

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8
Q

What is the basic mechanism for respiration in annelids?

A

Simple diffusion

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9
Q

Which two organisms that we’ll examine today have a clitellum?

A

Oligochaeta

Hirudinida

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10
Q

Which phylum and class do sea cucumbers belong to?

A

Class Holothuroidea

Phylum Echinodermata

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11
Q

What is a nephridium?

A

Mini kidney involved in waste excretion

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12
Q

Do annelids have a closed or open circulatory system?

A

Closed

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13
Q

Which phylum and class do leeches belong to?

A

Class Hirudinida

Phylum Annelida

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14
Q

What type of symmetry is displayed by Echinoderms?

A

Echinoderms= bilateral symmetry

*adult form display pentaradial symmetry

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15
Q

Name three structure associated with the water vascular system.

A 
Ampullae
Ambulacral ridge
Tube feet
Radial canal
Madreporite
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16
Q

What are the two sections of a starfish stomach?

A

Pyloric stomach

Cardiac stomach

17
Q

Describe one way that you can differentiate between dorsal and ventral side of an earthworm.

A

Flattened side is the ventral side

Dark like running down would be the dorsal side

18
Q

What is the function of the gizzard in the earthworm?

A

Physical digestion (grinding) of the food

19
Q

What is the function of the seminal receptacles?

A

Female organs that store sperm after copulation

20
Q

Which phylum and class does the sea urchin belong to?

A

Class Echinoidea

Phylum Echinodermata

organism 2 (aebi 211-lab) (5 decks)

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