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Biology 1108 > Protostomes (ch. 34) > Flashcards

Protostomes (ch. 34) Flashcards

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1
Q

What is the biggest phylum for protostomes?

A

Anthropoda

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2
Q

What is a protostome?

A

“first mouth” blastopore becomes mouth

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3
Q

How would you describe schizocoely? The embyronic ____ splits to form coelom in protostomes.

A

mesoderm

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4
Q

How would you describe enteroceoly? Fold of the _____ form coelom in deuterostomes.

A

archenteron

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5
Q

How big are rotifers?

A

less than 1mm

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6
Q

Rotifers are ___ feeders and have ____ (corona).

A

suspension; cilia

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7
Q

Rotifers are motile or sessile?

A

sessile

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8
Q

What is the common name for Platyhelminthes?

A

Flatworms

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9
Q

Flatworms have ___ germ layers.

A

3

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10
Q

Flatworms are ____coelomate.

A

a…coelomate

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11
Q

_____ are an example of flatworms.

A

Planarians, Liver flukes, Blood flukes, Tapeworms, etc

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12
Q

Annelids are _____ worms.

A

segmented

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13
Q

Definition: repeated body structures, i.e., vertebrates

two types: vertebrates and invertebrates

A

Segmentation

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14
Q

Name some annelids…3 classes: Oligochaeta (___), hirudinea (___), polychaeta (____).

A

Oligochaeta (earthworm), hirudinea (leeches), polychaeta (Bristle worms)

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15
Q

What do you know about Earthworm anatomy? They have ___ pair of “hearts” and ____ridia.

A

5; neph…ridia

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16
Q

Leeches (Hirudinea) are ____ and have saliva that contains a anesthetic and ____coagulant.

A

parasitic; anti…

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17
Q

Mollusks have ____ symmetry.

A

Bilateral

18
Q

Mollusks have a foot, ____ mass and a mantle.

A

visceral

19
Q

What are the 4 lineages of mollusca: bivalves, ___pods, chitons and ___pods.

A

gastro, cephalo

20
Q

Polyplacophora (poly-placo-phora) refers to the …

A

Chiton

21
Q

Name some cephalopods: octopus…

A

squid, nautilus, cuttlefish, etc.

22
Q

Cephalopods have a complex ____ system, and they are ___.

A

sensory; predators

23
Q

Bivalves have ___ closeable shells. They are ___ feeders.

A

2, filter

24
Q

Examples of bivalves are …

A

clams, scallops

25
Q

Gastropods “stomach-foot” makes you think of what animal?

A

snails and slugs

26
Q

Gastropods eat with ____ula.

A

Rad..ula

27
Q

Roundworms are considered ____.

A

Nematodes (phylum Nematoda)

28
Q

Nematodes have a ___coelom. They lack segmentation.

A

pseudo

29
Q

Definition: A system of body support involving a body wall in tension surrounding a fluid or soft tissue under compression. Hydro…..

A

Hydrostatic skeleton

30
Q

Nematodes can also be ____. Examples include intestinal roundworms, elephantiasis and heartworms.

A

Parasitic

31
Q

Soil nematodes are _____ and can be plant parasites.

A

decomposers

32
Q

Anthropods have an _____ made of chitin.

A

exoskeleton

33
Q

There are more than ___ million species of anthropods.

A

1

34
Q

True or False: Trilobites are almost extinct, so some remain still today.

A

False! They are ALL extinct!

35
Q

Name an anthropod in the subphylum Hexapoda (“six-legs).

A

Grasshopper

36
Q

The three body regions of the hexapods are head, ___, and abdomen.

A

thorax

37
Q

Definition: Transition from one developmental stage to another, such as from larval to the adult form of an animal.

A

metamorphosis

38
Q

Spider crabs and the monarch _____ go through metamorphosis (larva –> adult)

A

butterfly

39
Q

Arachnids have ___ legs and include spiders, scorpions, ticks, mites, etc. These and the horseshoe-crabs make up the subphylum ____.

A

8, chelicerata

40
Q

Centipedes (2 legs/segment) and millipeds (4 legs/segment) make up the subphylum ____.

A

Myriapoda

41
Q

These have ten legs and include crabs, shrimp, crayfish, lobsters and isopods. These are all in the subphylum _____.

A

Crustacea

Biology 1108 (3 decks)

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