Invertebartes Flashcards

1
Q

What is the basic unit of structure and function in living things?

A

Cell

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2
Q

What is a group of similar cells that perform a specific function?

A

Tissue

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3
Q

What is a structure that is composed of different kinds of tissue?

A

Organ

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4
Q

What is a group of structures that perform the broadest functions of an animal?

A

System

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5
Q

What is the line of symmetry where the quality of being divisible into halves that are mirror images?

A

Bilateral Symmetry

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6
Q

What is the quality of having many lines of symmetry that all pass through a central point?

A

Radial Symmetry

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7
Q

What is the immature form of an animal that looks very different from the adult?

A

Larva

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8
Q

What is an invertebrate animal that uses stinging cells to capture food and defend itself?

A

Cnidarian

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9
Q

What is a cnidarian body plan characterized by a vaselike shape and usually adapted for a life attached to an underwater surface?

A

Polyp

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10
Q

What is a cnidarian body plan characterized by a bowl shape and adapted for a free-swimming life?

A

Medusa

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11
Q

What is a circulatory system in which the heart pumps blood into open spaces in the body and blood in not confined to blood vessels?

A

Open Circulatory System

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12
Q

What is an organ that removes oxygen from water?

A

Gill

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13
Q

What is a mollusk with a single shell or no shell?

A

Gastropod

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14
Q

What is an animal that eats only plants?

A

Herbivore

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15
Q

What is an animal that eats only other animals?

A

Carnivore

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16
Q

What is a mollusk that has two shells held together by hinges and strong muscles?

A

Bivalve

17
Q

What is an animal that eats both plants and animals?

A

Omnivore

18
Q

What is an ocean-dwelling mollusk whose foot is adapted as tentacles that surround its mouth?

A

Cephalopod

19
Q

What is an invertebrate that has an external skeleton, a segmented body, and jointed appendages?

A

Arthropod

20
Q

What is a waxy, waterproof outer shell or outer skeleton that protects the animal and helps prevent evaporation of water?

A

Exoskeleton

21
Q

What is the process of shedding an outgrown exoskeleton?

A

Molting

22
Q

What is an appendage on the head of an animal that contains sense organs?

A

Antenna

23
Q

What is an arthropod that has two or three body sections, five or more pairs of legs, and two pairs of antenna?

A

Crustacean

24
Q

What is the process in which an animal’s body undergoes dramatic changes in form during its life?

A

Metamorphosis

25
Q

What is an arthropod with two body sections, four pairs of legs, and no antenna?

A

Arachnid

26
Q

What is the hind section of an arthropod’s body that contains its reproductive organs and part of its digestive tract?

A

Abdomen

27
Q

What is an internal skeleton?

A

Endoskeleton

28
Q

Name the seven levels of the classification system in order.

A
  1. Kingdom
  2. Phylum
  3. Class
  4. Order
  5. Family
  6. Genus
  7. Species
29
Q

What are the four functions of animals?

A
  1. Obtain food and oxygen
  2. Keep internal conditions stable
  3. Move
  4. Reproduce
30
Q

Having pores is a characteristic of which invertebrate phylum?

A

Porifera

31
Q

Filter feeders is a characteristic of which invertebrate phylum?

A

Porifera

32
Q

Having no tissues or organs is a character of which invertebrate phylum?

A

Porifera

33
Q

Sponges are in what phylum?

A

Porifera

34
Q

Stinging cells is a characteristic of which invertebrate phylum?

A

Cnidarian

35
Q

Having a central cavity which takes in food is a characteristic of which invertebrate phylum?

A

Cnidarian

36
Q

Arachnids are a group of which invertebrate phylum?

A

Arthropods

37
Q

What are the two main body types of cnidarians?

A
  1. Polyp

2. Medusa

38
Q

Portuguese Man of War is in which phylum?

A

Cnidarians