Molluscs Flashcards

1
Q

Are molluscs soft-bodied or hard-bodied?

A

Soft-bodied

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2
Q

Symmetry of Molluscs

A

Bilateral

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3
Q

Coelom of Molluscs

A

True coelom

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4
Q

Ancestral in Molluscs

A

Ancestral trochophore larva

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5
Q

Rasping apparatus in Molluscs

A

Radula

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6
Q

Responsible for locomotion in Molluscs

A

Ventral muscular foot

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7
Q

Molluscs have ____ circulatory systems except:

A

Open; cephalopods

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8
Q

Secretes calcium carbonate to form shells

A

mantle

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9
Q

Mollusca Representatives

A

Class Polyplacophora
Class Gastropoda
Class Bivalvia
Class Cephalopoda

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10
Q

Class Polyplacophora representative specimen

A

Katharina sp.

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11
Q

Class Gastropoda representative specimen

A

Helix sp.

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12
Q

Class Bivalvia representative specimen

A

Anodonta sp.

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13
Q

Class Cephalopoda representative specimen

A

Loligo sp.

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14
Q

Identify: (Number 1, 2, & 3):

https://drive.google.com/file/d/1FATrCSoILL-uwZUZlIqECXM61jXLCkmF/view?usp=drivesdk

A

1 - Snterior adductor muscle
2 & 3 - Pair of gills

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15
Q

Identify (4, 5, & 6):

https://drive.google.com/file/d/1FATrCSoILL-uwZUZlIqECXM61jXLCkmF/view?usp=drivesdk

A

4 - Mantle layer
5 - Foot
6 - Posterior adductor muscle

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16
Q

Identify: (#1-#7)

https://drive.google.com/file/d/1FfAW3nn9tEZbKqyjDHdRdiE1w76BGxnq/view?usp=drivesdk

A

1 - Fin
2 - Testis
3 - Seminal Vesicle
4 - Penis
5 - Ink sac
6 - Digestive gland
7 - Siphon

17
Q

Identify #8-#14:

https://drive.google.com/file/d/1FfAW3nn9tEZbKqyjDHdRdiE1w76BGxnq/view?usp=drivesdk

A

8 - Beak
9 - Tentacle
10 - Sucker
11 - Arms
12 - Buccal mass
13 - Eye
14 - Siphon retractor muscle

18
Q

Identify #15-#21:

https://drive.google.com/file/d/1FfAW3nn9tEZbKqyjDHdRdiE1w76BGxnq/view?usp=drivesdk

A

15 - Ctenidium
16 - Rectum
17 - Kidney
18 - Branchial heart
19 - Systemic heart
20 - Stomach
21 - Cecum

19
Q

Class Polyplacophora are ____ animals (habitat)

A

Marine

20
Q

Class Polyplacophora feeds on ____

A

Algae and diatom

21
Q

Are Class Polyplacophora monoecious or dioecious?

A

Dioecious

22
Q

Habitats of Class Gastropoda

A

Marine, Freshwater, and terrestrial