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Life Science 7 > Chapter 10 > Flashcards

Chapter 10 Flashcards

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Biology 101 flashcards
1
Q

What are arthropods with very hard, crusty exoskeletons?

A

Crustaceans

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2
Q

What is the substance that makes crustacean exoskeletons so hard?

A

Calcium carbonate

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3
Q

What are the two body regions of crustaceans?

A

Cephalothorax and abdomen

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4
Q

Which crustacean order includes many of the most familiar edible arthropods?

A

Decapoda

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5
Q

What is the hard shell of decapods that provides protection for the vital organs called?

A

Carapace

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6
Q

What is the forward extension of the carapace that protects the decapod’s head?

A

Rostrum

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7
Q

What are the three pairs of “jaw feet” that are designed to hold food while the decapod chews?

A

Maxillipeds

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8
Q

What are the structures on the underside of each abdomen segment that are used for swimming and mating?

A

Swimmerets

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9
Q

What crustaceans are distinguished by having seven pairs of legs?

A

Amphipods

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10
Q

What copepod has a single simple eye on top of its head?

A

Cyclops

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11
Q

What is the crustacean group that breathes with gills on the flattened extensions of their legs?

A

Branchiopods

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12
Q

What are the most numerous animals found in freshwater plankton?

A

Water fleas

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13
Q

What is the branchiopod that lives in salty water and lacks a carapace?

A

Brine shrimp

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14
Q

What is the best known cirripede?

A

Barnacles

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15
Q

What shrimp-like crustacean forms a significant part of marine plankton and are some of the most vital life forms in the ocean?

A

Krill

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16
Q

What are the only truly terrestrial crustaceans?

A

Woodlice

17
Q

What order includes spiders, daddy longlegs, mites, ticks, scorpions, and pseudoscorpions?

A

Arachnida

18
Q

What are arachnid’s respiratory structures made up of thin, flat folds of tissue arranged like book pages?

A

Book lungs

19
Q

What are the appendages located below the eyes of most arachnids used for seizing and crushing prey?

A

Chelicerae

20
Q

What are the appendages that assist the chelicerae in guiding food to the mouth?

A

Pedipalps

21
Q

What are the two groups of spiders?

A

True spiders and Mygalomorphs

22
Q

What spider has a dark violin-shaped marking on its brown cephalothorax?

A

Brown recluse

23
Q

What spider is known for its characteristic red or orange hourglass-shaped marking on the underside of its abdomen?

A

Black widow

24
Q

What arachnid is also called a harvestman?

A

Daddy longlegs

25
Q

What camouflaged arachnid has no stinger?

A

Pseudoscorpion

26
Q

What is a disease commonly transmitted by ticks?

A

Lyme disease

27
Q

What skin diseases come from mites?

A

Scabies and mange

28
Q

What group of arthropod is in the class Chilopoda?

A

Centipede

29
Q

What arthropod has a rounded body with two pairs of jointed appendages per abdominal segment?

A

Millipede

30
Q

What is the scientific term for segmented worms?

A

Annelids

31
Q

What is the common name for Platyhelminths?

A

Flatworms

32
Q

What arthropods are the most abundant animals?

A

Nematodes (roundworms)

33
Q

What is the common name for the order that contains clams, oysters, snails, slugs, and octopuses?

A

Mollusks

34
Q

What is the group of aquatic mollusks that includes clams, oysters, mussels, and similar species?

A

Bivalves

35
Q

What group of mollusk has a name that means “stomach foot”?

A

Gastropods

36
Q

What mollusks have the head and foot combined into one structure?

A

Cephalopods

37
Q

What group of marine animals includes starfish, sea urchins, sand dollars, and sea cucumbers?

A

Echinoderms

38
Q

What is the group of arthropods that include jellyfish, sea anemones,j and corals?

A

Coelenterates

39
Q

What are the only multicellular animal without a nervous system?

A

Sponges

Life Science 7 (20 decks)

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