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Organisms 2 (AEBI 211) > Lab 2 Pre Lab Quiz Questions > Flashcards

Lab 2 Pre Lab Quiz Questions Flashcards

1
Q
  1. Define triploblastic.
A

Animals that have three germ layers

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2
Q
  1. Name a phylum that includes triploplastic organisms that do NOT have a coelom.
A

Platyhelminthes

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3
Q
  1. Which of the following is NOT a Mollusc: Chitons, Snails, Planaria, Cuttlefish
A

Planaria

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4
Q
  1. Which of the following is a function of auricles?
    a) Used for touch
    b) Used for hearing
    c) Used for olfaction
    d) a and c are correct
    e) b and c are correct
A

d)

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5
Q
  1. Name a specimen from today’s lab that doesn’t have a circulatory system.
A

Planarian

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6
Q
  1. What are chromatophores?
A

Specialized pigment cells that allow the animal to rapidly change the colour of their skin

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7
Q
  1. What is the role of the pneumostome?
A

Allows air to enter a highly vascularised section of the mantle cavity (Gas exchange)

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8
Q
  1. What is the function of the radula?
A

Helps provide some mechanical breakdown of food (a grinding action) before digestion

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9
Q
  1. What is the role of a siphon?
A

Allows water to flow for purposes such as locomotion, feeding, respiration, and reproduction.

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10
Q
  1. Which specimen from Phylum Mollusca has a parasitic larval stage?
A

Freshwater Mussels

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11
Q
  1. Do all molluscs have shells?
A

No

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12
Q
  1. What is the role of a rostellum?
A

To help the animal adhere to the hosts’ intestine so it can feed

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13
Q
  1. The body of a tapeworm can be divided into three main sections. Name them.
A

Strobila
Neck
Scolex

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14
Q
  1. Name the process that forms proglottids.
A

Strobilation

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15
Q
  1. What symmetry do all the phyla in today’s lab have?
A

Bilateral symmetry

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16
Q
  1. Name 2 specimens that use a muscular foot for locomotion.
A

Freshwater Mussels
Land Snails

17
Q
  1. What is the oldest part of the snail shell?
A

The Apex

18
Q
  1. What is the oldest part of the mussel shell?
A

The Umbo

19
Q
  1. What is the purpose of the squid’s ink sac?
A

To eject a cloud of ink through its siphon to startle or deter predators, and to create a kind of “smoke screen” while it escapes.

20
Q
  1. Which organisms from today’s lab breathe with gills?
A

Freshwater Mussels
Squids

Organisms 2 (AEBI 211) (13 decks)

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