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Marine Animals > Animalia Part 1 > Flashcards

Animalia Part 1 Flashcards

0
Q

What is the basic body plan of a sponge?

A

Hollow with pores (called “ostia”)

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1
Q

What are the 6 Distinguishing characteristics of animals?

A

1) multicellular
2) sexual reproduction
3) heterotrophic
4) Eukaryotes w/o cell walls
5) sexual dimorphism
6) muscle contractions and nerve conducting

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2
Q

What are sponge spicules used for?

A

They make up the skeleton.

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3
Q

What are the 3 types of sponge body shapes?

A

1) Choanocytes
2) Pinacocytes
3) Archeocytes

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4
Q

What are the 2 possible Cnidarian body plans?

A

Medusa and Polyp

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5
Q

Scyphozoa grow from polyps into what?

A

Medusa

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6
Q

What is an example of an animal from Scyphozoa?

A

Jellyfish

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7
Q

What are some examples of Anthozoa?

A

Corals and anemones.

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8
Q

Anthozoa secrete what to make up their skeleton?

A

Calcium Carbonate

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9
Q

What do Anthozoa use to feed off plankton?

A

Their nematocysts.

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10
Q

What is a coelom?

A

A well defined, fluid filled body cavity.

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11
Q

What are 3 adaptations that roundworms have to be infauna?

A

1) do not have well developed muscles
2) cylindrical shape for ease of movement
3) no skeletal support

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12
Q

What is a mantle?

A

The tissue that secretes a mollusk’s shell.

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13
Q

What are veliger larvae?

A

The stage in between trochophore larvae and a juvenile.

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14
Q

Examples of Gastropoda?

A

1) Snails
2) Abalone
3) Limpets

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15
Q

Examples if Cephalopoda?

A

1) Giant Clams
2) Squid
3) Nautilus or Octopus

16
Q

What are trochophore larvae?

A

Larvae covered in cilia with a cilia tuft to aid in feeding.

17
Q

Main features of mollusks?

A

1) Developed organs for gas exchange

2) Gills and a heart

18
Q

Basic features of Bivalvia?

A

1) Two shells

2) Siphons for feeding

19
Q

Basic features of a nautilus?

A

1) 60-90 tentacles

2) Chambers

20
Q

Basic features of Cephalopoda?

A

1) Little to no shell
2) 8 or more arms
3) Jet propulsion

21
Q

What are annelids?

A

Segmented marine worms that create tubes to filter feed.

22
Q

Examples of annelids

A

Earthworms and leeches

23
Q

What is an hydrostatic skeleton?

A

A skeleton that uses it’s muscles to move the sediment around it.

24
Q

What are the major modes of annelid feeding?

A

1) Deposit feeders

2) Suspension feeders

25
Q

Basic body plan of an annelid?

A

1) segmented body
2) internal organs w/ brain
3) tentacles
4) gills
5) a distinct head region

26
Q

Basic features of an arthropod

A

Segmented exoskeleton made of chitin

Molts for growth

6 or more legs

27
Q

Unique features of Decapods?

A
  • 10 appendages
  • a distinct larval phase
  • antennae
  • strong mandibles

Marine Animals (1 decks)

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