Question 1

Each segment of an annelid typically contains bristles of chitin called

Accepted Answer

A)  cilia.
B)  parapodia.
C)  chaetae.
D)  leglets.E) B) and C)
F) A) and B)

Question 2

At a celebratory dinner for a recent publication, a marine biologist ordered the lobster claw appetizer.What part did she order?

Accepted Answer

A)  Nauplius
B)  Telson
C)  Uropods
D)  ChelipedE) B) and C)
F) A) and B)

Question 3

In what way are a human and a crab similar?

Accepted Answer

A)  Vertebrates and arthropods are deuterostomes.
B)  Both have muscles that pull against rigid skeletons.
C)  Both have closed circulatory systems.
D)  Both have a continuous growth pattern.E) None of the above
F) A) and B)

Question 4

An entomologist observed a locust sitting on a branch pumping its abdomen like an accordion.What is the insect most likely doing?

Accepted Answer

A)  Speeding the flow of blood through its veins and arteries
B)  Assisting gas exchange in the tracheal system
C)  Clearing its spinnerets
D)  Stretching out its pedipalpsE) All of the above
F) A) and C)

Question 5

A marine biologist makes a presentation about crustaceans to your biology class.He explains that he has recently received an NSF grant to study sessile crustaceans.You are only aware of one group of sessile crustaceans.This crustacean must be

Accepted Answer

A)  a lobster.
B)  a crayfish.
C)  a shrimp.
D)  a barnacle.E) None of the above
F) A) and D)

Question 6

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Accepted Answer

A)  Both use a radula for feeding.
B)  Both have a mantle capable of secreting calcium carbonate.
C)  Both use siphons to obtain oxygen.
D)  Both have sensory antenna.E) B) and D)
F) B) and C)

Question 7

Dibenzoylhydrazines are a category of molecules that have been used as insecticides.They work by blocking ecdysteroid receptors.How does this kill an insect?

Accepted Answer

A)  The insect can no longer excrete nitrogenous wastes.
B)  The insect cannot molt.
C)  The insect can no longer coordinate its movements.
D)  The chitinous exoskeleton is dissolved.E) None of the above
F) A) and C)

Question 8

Scorpions have a prosoma, pedipalps that are modified into claws, and chelicerae.Which taxonomic group are they a member of?

Accepted Answer

A)  Chelicerata
B)  Hexapoda
C)  Crustacea
D)  MyriapodaE) All of the above
F) A) and D)

Question 9

The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of

Accepted Answer

A)  bilateral symmetry.
B)  coelomic body architecture.
C)  jointed appendages.
D)  segmentation.E) B) and C)
F) None of the above

Exam 34: Protostomes

In what way are a human and a crab similar?

Correct Answer
verified

At a celebratory dinner for a recent publication, a marine biologist ordered the lobster claw appetizer.What part did she order?

Correct Answer
verified

Dibenzoylhydrazines are a category of molecules that have been used as insecticides.They work by blocking ecdysteroid receptors.How does this kill an insect?

Correct Answer
verified

The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of

Correct Answer
verified

An entomologist observed a locust sitting on a branch pumping its abdomen like an accordion.What is the insect most likely doing?

Correct Answer
verified

Each segment of an annelid typically contains bristles of chitin called

Correct Answer
verified

A marine biologist makes a presentation about crustaceans to your biology class.He explains that he has recently received an NSF grant to study sessile crustaceans.You are only aware of one group of sessile crustaceans.This crustacean must be

Correct Answer
verified

Scorpions have a prosoma, pedipalps that are modified into claws, and chelicerae.Which taxonomic group are they a member of?

Correct Answer
verified

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Correct Answer
verified

Exam 34: Protostomes

In what way are a human and a crab similar?

Correct AnswerverifiedShow Answer

At a celebratory dinner for a recent publication, a marine biologist ordered the lobster claw appetizer.What part did she order?

Correct AnswerverifiedShow Answer

Dibenzoylhydrazines are a category of molecules that have been used as insecticides.They work by blocking ecdysteroid receptors.How does this kill an insect?

Correct AnswerverifiedShow Answer

The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of

Correct AnswerverifiedShow Answer

An entomologist observed a locust sitting on a branch pumping its abdomen like an accordion.What is the insect most likely doing?

Correct AnswerverifiedShow Answer

Each segment of an annelid typically contains bristles of chitin called

Correct AnswerverifiedShow Answer

A marine biologist makes a presentation about crustaceans to your biology class.He explains that he has recently received an NSF grant to study sessile crustaceans.You are only aware of one group of sessile crustaceans.This crustacean must be

Correct AnswerverifiedShow Answer

Scorpions have a prosoma, pedipalps that are modified into claws, and chelicerae.Which taxonomic group are they a member of?

Correct AnswerverifiedShow Answer

A snail in your garden and an oyster are quite different in appearance.What would be evidence to justify grouping them together?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified