Chapter 12 Test Flashcards

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1
Q

No invertebrate has a

A

backbone

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2
Q

This phylum has the most animal species

A

Arthropoda

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3
Q

Flatworms have this type of symmetry

A

bilateral

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4
Q

This characteristic distinguishes earthworms from worms in other phyla

A

segmened body

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5
Q

Octopus use these to move quickly through the water

A

siphon

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6
Q

The tiny bristles that an earthworm uses for movement

A

setae

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7
Q

Clams obtain food by

A

filtering it from the water

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8
Q

The chamber in an earthworm’s digestive system that temporarily stores food

A

crop

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9
Q

The chamber in an earthworm’s digestive system that grinds food during mechanical digestion

A

gizzard

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10
Q

Animals such as clams that have two shells hinged together

A

bivalves

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11
Q

Part of the body that sponges have

A

spicules and spongin

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12
Q

Arthropods have

A

exoskeletons

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13
Q

Animals

A
  • are eukaryotic
  • are consumers
  • reproduce sexually
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14
Q

Some insecticides work by blogging the insect’s __________ so they can’t breathe

A

spiracles

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15
Q

Organisms that have both male and female reproductive structures in the same body

A

hermaphroditic

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16
Q

Earthworms have a __________ circulatory system

A

closed

17
Q

Earthworms carry on respiration this way

A

through their skin

18
Q

Brown tube sponge

A

Porifera

19
Q

Honeybee

A

Arthropoda

20
Q

Planarian

A

Platyhelminthes

21
Q

Box Jellyfish

A

Cnidaria

22
Q

Earthworm

A

Annelida

23
Q

A type of skeleton similar to a water balloon

A

hydrostatic

24
Q

A stinging cell of a hydra or jellyfish

A

nematocyst

25
Q

The resting stage of insect development

A

pupa

26
Q

A tube that transports gases inside insects

A

trachea

27
Q

An outer opening of an insect’s gas exchange system

A

spiracle

28
Q

A collection of nerve tissue, called a “simple brain”

A

ganglion

29
Q

An insect’s life cycle, which includes changes in body form

A

metamorphosis

30
Q

Structures that control blood pressure in an earthworm

A

aortic arches