Invertebrates Flashcards

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1
Q

Vertebrates

A

Animal that has a backbone

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2
Q

Invertebrates

A

Animals with no backbone

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3
Q

Consumer

A

an organism that eats other organisms or organic matter

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4
Q

Ganglion

A

a mass of nerve cells

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5
Q

Gut

A

the digestive tract

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6
Q

Coelom

A

a body cavity that contains the internal organs

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7
Q

Bilateral Symmetry

A

When 2 sides of the body mirror each side

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8
Q

Radial symmetry

A

A body organized around the center. Like spokes on a wheel

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9
Q

Asymmetry

A

You cannot draw a straight line through the middle to divide each side identical

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10
Q

Sponges

A

simplest invertebrates they have asymmetrical bodies and have no tissues, gut, or neurons

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11
Q

Cnidarians

A

Animals that have stinging cells

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12
Q

Flatworms

A

bilateral symmetry with 2 defined large eye spots even though they cannot see they can define light

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13
Q

Roundworms

A

bilateral symmetry they have a simple nervous system which consists of a ring of ganglia

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14
Q

Mollusks

A

Snails,slugs,clams, oysters,squids, octopuses

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15
Q

Open circulatory System

A

a circulatory system in which the circulatory fluid is not contained entirely within vessels

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16
Q

Closed circulatory system

A

a circulatory system in which the heart circulates blood through a network of blood vessels that form a closed loop

17
Q

Aneelid worms

A

any worms of the phylum annelida

18
Q

exoskelition

A

a rigid external covering for the body in some invertebrate animals

19
Q

compund eye

A

an eye consisting of an array of numerous small visual units

20
Q

anteena

A

either a pair of long thin sensory appendages on the heads of insects

21
Q

metamorphisis

A

the process of transformation from an immature form to an adult

22
Q

endoskelition

A

an interal skeleton such as a bony or cartilaginous skeleton of vertebrates

23
Q

water vascular system

A

a network of water vessels in the body