Invertebrate Animals Flashcards

1
Q

Vertebrate

A

an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.

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2
Q

Invertebrate

A

an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate

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3
Q

Consumer

A

An organism that generally obtains food by feeding on other organisms or organic matter

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4
Q

Ganglion

A

Mass of nerve tissue; a group of nerve cell bodies

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5
Q

Gut

A

The portions of the alimentary canal, particularly the stomach and the intestines

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6
Q

Coelom

A

A coelom is a fluid-filled body cavity that is completely lined by tissue created from the mesoderm

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7
Q

Bilateral Symmetry

A

the property of being divisible into symmetrical halves on either side of a unique plane.

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8
Q

Radial Symmetry

A

symmetry around a central axis, as in a starfish or a tulip flower.

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9
Q

Asymmetry

A

lack of equality or equivalence between parts or aspects of something; lack of symmetry.

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10
Q

Sponges

A

Any of numerous aquatic, chiefly marine invertebrate animals of the phylum Porifera.

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11
Q

Cnidarians

A

any invertebrate animal, as a hydra, jellyfish, sea anemone, or coral, considered as belonging to the phylum Cnidaria

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12
Q

Flatworms

A

Any of the worms belonging to the phylum Platyhelminthes, characterized by a flattened and bilaterally symmetrical body.

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13
Q

Roundworms

A

A type of parasitic worm that hatches in the intestines and lives there.

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14
Q

Mollusks

A

Any of a large phylum of invertebrate animals with a soft unsegmented body usually enclosed in a calcareous shell broadly

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15
Q

Open Circulatory System

A

pumps blood into a hemocoel with the blood diffusing back to the circulatory system between cells.

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16
Q

Closed Circulatory System

A

Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness.

17
Q

Annelid worms

A

The annelids, also known as the ringed worms or segmented worms, are a large phylum.

18
Q

Exoskeleton

A

a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

19
Q

Compound Eye

A

A compound eye is a visual organ found in arthropods such as insects and crustaceans.

20
Q

Antenna

A

either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.

21
Q

Metamorphosis

A

the process of transformation from an immature form to an adult form in two or more distinct stages.

22
Q

Endoskeleton

A

an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.

23
Q

Water Vascular System

A

a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.