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Crustaceans are primarily freshwater animals,but there are some marine and a few terrestrial species.

A) True
B) False

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Groups of somites fused or combined into functional groups are called _________.

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The individual units of compound eyes are called __________.

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Crabs,lobsters,and true shrimps belong to the malacostracan order Amphipoda.

A) True
B) False

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A group of crustaceans that are of extreme ecological importance,often dominating the primary consumer level in aquatic communities,is the ______________.

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Most species of insects have wings.

A) True
B) False

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Arthropods are similar to annelids in that they both have


A) ciliA.
B) an open circulatory system.
C) a ventral nerve cord with metamerically arranged ganglia.
D) intersegmental septa.

E) A) and D)
F) None of the above

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Wing muscles of insects are termed indirect if they are attached to the wing itself.

A) True
B) False

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Some examples of branchiopod crustaceans are the


A) water fleas (Cladocera) .
B) copepods.
C) ostracods.
D) crabs.

E) B) and D)
F) A) and B)

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The major endocrine organs involved in insect development are the brain,ecdysial glands,and ____________.

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Which of the following castes of honeybees develops from unfertilized eggs?


A) drones
B) workers
C) queens
D) soldiers

E) C) and D)
F) All of the above

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Insects differ from other arthropods because insects have


A) paired,jointed legs.
B) antennae.
C) wings.
D) mandibles.

E) B) and D)
F) A) and B)

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Wormlike parasites in the lungs and nasal passages of carnivorous vertebrates belong to the phylum _______________.

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The stages in the life cycle of a holometabolous insect are _________________.

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egg,larva,...

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Which of the following contains the grasshoppers?


A) Diptera
B) Odonata
C) Orthoptera
D) Hymenoptera

E) A) and C)
F) C) and D)

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Choose the correct statement:


A) The author depicts crustaceans and hexapods as sister groups.
B) The Mollusca may be a sister group of the Arthropoda and Tardigrada.
C) The Arthropoda and Mollusca form a sister group to the Annelida.
D) None of the above is correct.

E) B) and D)
F) C) and D)

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The black widow and the brown recluse are dangerous spiders.

A) True
B) False

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Some mites,such as the ______________,are very destructive to plants.

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Dragonflies belong to the order ___________.

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No other group of animals is more successful than the arthropods.

A) True
B) False

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