Question 1

Flatworms have bilateral symmetry.

Accepted Answer

A) True 
 B)False

Question 2

In biology lab,you are observing and dissecting flatworms.Their bodies are very thin,even see-through,and their thin body surface allows them to exchange gases of oxygen and carbon dioxide with the underlying cells and tissues.Flatworms lack which of the following anatomical systems?

Accepted Answer

A)   excretion
B)   nervous
C)   movement
D)   digestive
E)   respiratoryF) All of the above
G) A) and B)

Question 3

In your biology lab,you use a stereoscopic microscope to observe a living animal that uses only one opening to both take in its food,and also eject its waste products after having eaten and digested the food for metabolism.This body arrangement of the animal is which of the following?

Accepted Answer

A)   incomplete digestive tract
B)   gastrovascular cavity
C)   complete digestive tract
D)   complete digestive tract and a gastrovascular cavity
E)   incomplete digestive tract and a gastrovascular cavityF) B) and E)
G) All of the above

Question 4

Mollusks that have two-part hinged shells are called bivalves.

Accepted Answer

A) True 
 B)False

Question 5

Figuer: 
-The observation that Tiktaalik had both gills and lungs suggests which of the following?

Accepted Answer

A)   It could absorb oxygen from both the air and water.
B)   It could absorb oxygen from the air.
C)   It could absorb food from the water.
D)   It could absorb oxygen from the water.
E)   It could absorb both food and oxygen from the water.F) B) and E)
G) A) and C)

Question 6

Which of the following is an amphibian?

Accepted Answer

A)   turtle
B)   lizard
C)   toad
D)   octopus
E)   coelacanthF) A) and E)
G) C) and D)

Question 7

The function of vertebrae is to

Accepted Answer

A)   protect the brain and nerve cord.
B)   protect the nerve cord and provide attachment points for muscles.
C)   provide attachment points for muscles.
D)   protect the brain.
E)   protect the nerve chord.F) C) and D)
G) D) and E)

Question 8

An internal membrane in chordates that protects the developing fetus is the notochord.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following does not have a true coelom?

Accepted Answer

A)   earthworm
B)   sea star
C)   insect
D)   snail
E)   roundwormF) A) and B)
G) B) and E)

Question 10

A mollusk that has arms connecting directly to the head of the animal is a

Accepted Answer

A)   fluke.
B)   chiton.
C)   cephalopod.
D)   gastropod.
E)   bivalve.F) D) and E)
G) A) and E)

Question 11

Spiders and scorpions belong to the phylum containing the

Accepted Answer

A)   Arthropods.
B)   Mollusks.
C)   Cnidarians.
D)   Annelids.
E)   Echinoderms.F) B) and D)
G) All of the above

Question 12

The free-swimming tunicate larva resembles a tadpole. Once it settles headfirst onto a solid surface the tail and notochord disappear, and the nerve cord shrinks to nearly nothing. The adults, which are usually sessile, retain only the pharyngeal slits. Neither adult nor larva is segmented.
-Tunicates have which of the following traits?

Accepted Answer

A)   incomplete digestive tract
B)   radial symmetry
C)   endothermic
D)   cephalization
E)   asymmetryF) None of the above
G) B) and D)

Question 13

Which adaptations in fishes enabled vertebrates to thrive on land?

Accepted Answer

A)   fins
B)   limbs and lungs
C)   lungs and fins
D)   lungs
E)   limbsF) A) and B)
G) B) and C)

Question 14

The most obvious characteristic of annelids is the repeated segments that make up their bodies.They also have a complete digestive system,and a coelom.Which of the following is true of an annelid?

Accepted Answer

A)   They have an open circulatory system.
B)   They have cephalization and an open circulatory system.
C)   Their gut is separated from their body wall and they have cephalization.
D)   They have cephalization.
E)   Their gut is separated from their body wall.F) B) and C)
G) A) and B)

Question 15

Presence of vertebrae is a shared characteristic among all chordates.

Accepted Answer

A) True 
 B)False

Question 16

A description of sharks that does not apply to other fish groups is that

Accepted Answer

A)   they are bony, with ray-finned appendages.
B)   they are cartilaginous craniates with jaws.
C)   they are cartilaginous craniates without jaws.
D)   they are bony with lobe-finned appendages.
E)   they have scale-less skin with lateral lines for sensing vibrations.F) C) and E)
G) A) and C)

Question 17

Figuer:
Main animal groups are noted at the right. Names diverging at each node are morphological or body form names. Note that the animal traits key to distinguishing the groups and body forms are not shown.
-Prior to the divergence of animals,an ancestor is proposed to have developed the key shared trait of all animals,the

Accepted Answer

A)   presence of a mouth by which to consume nutrition materials.
B)   body form of having true tissues.
C)   body form of multicellularity.
D)   embryonic development of the mouth first, from embryonic cells.
E)   ganglia or brain cells to control all motion.F) A) and B)
G) B) and E)

Question 18

A sea squirt is an example of a

Accepted Answer

A)   fish.
B)   amphibian.
C)   mammal.
D)   tunicate.
E)   lancelet.F) A) and D)
G) B) and D)

Question 19

Flatworms have complete digestive tracts.

Accepted Answer

A) True 
 B)False

Question 20

Corals and jellyfish belong to the phylum containing the

Accepted Answer

A)   Flatworms.
B)   Sponges.
C)   Nematodes.
D)   Cnidarians
E)   Annelids.F) None of the above
G) C) and D)

Exam 21: Animals

Presence of vertebrae is a shared characteristic among all chordates.

Correct Answer
verified

A mollusk that has arms connecting directly to the head of the animal is a

Correct Answer
verified

In biology lab,you are observing and dissecting flatworms.Their bodies are very thin,even see-through,and their thin body surface allows them to exchange gases of oxygen and carbon dioxide with the underlying cells and tissues.Flatworms lack which of the following anatomical systems?

Correct Answer
verified

A sea squirt is an example of a

Correct Answer
verified

Corals and jellyfish belong to the phylum containing the

Correct Answer
verified

Flatworms have complete digestive tracts.

Correct Answer
verified

Which adaptations in fishes enabled vertebrates to thrive on land?

Correct Answer
verified

In your biology lab,you use a stereoscopic microscope to observe a living animal that uses only one opening to both take in its food,and also eject its waste products after having eaten and digested the food for metabolism.This body arrangement of the animal is which of the following?

Correct Answer
verified

Which of the following does not have a true coelom?

Correct Answer
verified

Flatworms have bilateral symmetry.

Correct Answer
verified

The most obvious characteristic of annelids is the repeated segments that make up their bodies.They also have a complete digestive system,and a coelom.Which of the following is true of an annelid?

Correct Answer
verified

The function of vertebrae is to

Correct Answer
verified

Figuer: -The observation that Tiktaalik had both gills and lungs suggests which of the following?

Correct Answer
verified

Which of the following is an amphibian?

Correct Answer
verified

An internal membrane in chordates that protects the developing fetus is the notochord.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Mollusks that have two-part hinged shells are called bivalves.

Correct Answer
verified

Spiders and scorpions belong to the phylum containing the

Correct Answer
verified

A description of sharks that does not apply to other fish groups is that

Correct Answer
verified

Exam 21: Animals

Presence of vertebrae is a shared characteristic among all chordates.

Correct AnswerverifiedShow Answer

A mollusk that has arms connecting directly to the head of the animal is a

Correct AnswerverifiedShow Answer

In biology lab,you are observing and dissecting flatworms.Their bodies are very thin,even see-through,and their thin body surface allows them to exchange gases of oxygen and carbon dioxide with the underlying cells and tissues.Flatworms lack which of the following anatomical systems?

Correct AnswerverifiedShow Answer

A sea squirt is an example of a

Correct AnswerverifiedShow Answer

Corals and jellyfish belong to the phylum containing the

Correct AnswerverifiedShow Answer

Flatworms have complete digestive tracts.

Correct AnswerverifiedShow Answer

Which adaptations in fishes enabled vertebrates to thrive on land?

Correct AnswerverifiedShow Answer

In your biology lab,you use a stereoscopic microscope to observe a living animal that uses only one opening to both take in its food,and also eject its waste products after having eaten and digested the food for metabolism.This body arrangement of the animal is which of the following?

Correct AnswerverifiedShow Answer

Which of the following does not have a true coelom?

Correct AnswerverifiedShow Answer

Flatworms have bilateral symmetry.

Correct AnswerverifiedShow Answer

The most obvious characteristic of annelids is the repeated segments that make up their bodies.They also have a complete digestive system,and a coelom.Which of the following is true of an annelid?

Correct AnswerverifiedShow Answer

The function of vertebrae is to

Correct AnswerverifiedShow Answer

Figuer: -The observation that Tiktaalik had both gills and lungs suggests which of the following?

Correct AnswerverifiedShow Answer

Which of the following is an amphibian?

Correct AnswerverifiedShow Answer

An internal membrane in chordates that protects the developing fetus is the notochord.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Mollusks that have two-part hinged shells are called bivalves.

Correct AnswerverifiedShow Answer

Spiders and scorpions belong to the phylum containing the

Correct AnswerverifiedShow Answer

A description of sharks that does not apply to other fish groups is that

Correct AnswerverifiedShow Answer

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