Question 1

The structure that directs food into the body of a rotifer is called the corona.

Accepted Answer

A) True 
 B)False

Question 2

In _______, the mouth develops at or near the blastopore.

Accepted Answer

A)   gastrocoelomates
B)   blastocoelomates
C)   protostomes
D)   deuterostomes
E)   triploblasticsF) A) and C)
G) B) and C)

Question 3

Periodically shedding their outer covering is a feature unique to the ________

Accepted Answer

A)   ecdysozoans.
B)   echonodermata.
C)   mollusca.
D)   lophotrochozoans.
E)   bryozoans.F) B) and E)
G) C) and D)

Question 4

Which of the following are NOT cnidaria?

Accepted Answer

A)   corals
B)   sponges
C)   sea anemones
D)   hydrozoa
E)   Portuguese man-of-warF) None of the above
G) A) and D)

Question 5

Identify the features unique to protostome development.

Accepted Answer

A)   Coelom forms by a splitting of the mesoderm, the blastophore becomes the mouth and the cleavage is spiral.
B)   Coelom forms by a splitting of the mesoderm, the blastophore becomes the anus and the cleavage is spiral.
C)   Coelom forms by a splitting of the mesoderm, the blastophore becomes the mouth and the cleavage is radial.
D)   None of the features listed are unique to the protostomes.E) B) and C)
F) A) and B)

Question 6

Which of these is a bivalve?

Accepted Answer

A)   slug
B)   octopus
C)   earthworm
D)   snail
E)   oysterF) C) and D)
G) B) and C)

Question 7

Describe the similarities and differences between the comb jellies and cnidarians.

Accepted Answer

Both of these groups have true tissues, ...

Question 8

Name one of the smallest, if not the smallest, animals that are sometimes referred to as "wheel animalcules."

Accepted Answer

A)   planaria
B)   parasitic mites
C)   fruit flies
D)   parasitic
E)   rotifersF) A) and B)
G) B) and D)

Question 9

Which of the following features is not one of the key features that led to the success of the arthropods?

Accepted Answer

A)   segmented body
B)   exoskeleton
C)   brain and a ventral nerve cord
D)   contain a variety of respiratory organs
E)   All are features that made arthropods successful.F) B) and D)
G) A) and B)

Question 10

Flukes are divided into Monogenea and Digenea. Monogenea have a posterior holdfast with hooks, clamps, and suckers; Digenea have suckers but never hooks and clamps. Monogenea have only one host in the life cycle, and usually live on gills or skin of fish and amphibians; Digenea have at least two hosts and often three or more, and are named because they have two reproductive states in their life cycle (an adult and intramolluscan phase) . From what you now know, the blood fluke Schistosoma would therefore be

Accepted Answer

A)   an endoparasite and Monogenean.
B)   an endoparasite and Digenean.
C)   an ectoparasite and Digenean.
D)   an ectoparasite and Monogenean.E) A) and C)
F) A) and D)

Question 11

Animals are classified according to all of the following features EXCEPT

Accepted Answer

A)   presence or absence of segmentation.
B)   mode of reproduction.
C)   type of body symmetry.
D)   number of germ layers.
E)   molecular data.F) B) and C)
G) C) and E)

Question 12

The only animal in which digestion occurs within cells is

Accepted Answer

A)   comb jellies.
B)   flatworms.
C)   sponges.
D)   cnidarians.E) C) and D)
F) A) and D)

Question 13

Which of the following is NOT a characteristic of all animals?

Accepted Answer

A)   Animals are heterotrophic by ingestion or absorption.
B)   Animals produce gametes by meiosis.
C)   Animals digest their food internally.
D)   Animals are multicellular eukaryotes.
E)   The adult form is diploid in an alternation of generation life cycle.F) D) and E)
G) A) and E)

Question 14

In deuterostomes,

Accepted Answer

A)   cleavage is radial and the fate of the cells is indeterminate.
B)   spiral cleavage occurs.
C)   the fate of cells is fixed and determinate.
D)   the mouth appears at or near the blastopore.E) C) and D)
F) B) and D)

Exam 28: Invertebrate Evolution

The structure that directs food into the body of a rotifer is called the corona.

Correct Answer
verified

Animals are classified according to all of the following features EXCEPT

Correct Answer
verified

Periodically shedding their outer covering is a feature unique to the ________

Correct Answer
verified

The only animal in which digestion occurs within cells is

Correct Answer
verified

Identify the features unique to protostome development.

Correct Answer
verified

In deuterostomes,

Correct Answer
verified

Correct Answer
verified

Which of the following is NOT a characteristic of all animals?

Correct Answer
verified

Which of these is a bivalve?

Correct Answer
verified

In _______, the mouth develops at or near the blastopore.

Correct Answer
verified

Which of the following are NOT cnidaria?

Correct Answer
verified

Which of the following features is not one of the key features that led to the success of the arthropods?

Correct Answer
verified

Name one of the smallest, if not the smallest, animals that are sometimes referred to as "wheel animalcules."

Correct Answer
verified

Describe the similarities and differences between the comb jellies and cnidarians.

Correct Answer
verified
Both of these groups have true tissues, ...
View Answer

Exam 28: Invertebrate Evolution

The structure that directs food into the body of a rotifer is called the corona.

Correct AnswerverifiedShow Answer

Animals are classified according to all of the following features EXCEPT

Correct AnswerverifiedShow Answer

Periodically shedding their outer covering is a feature unique to the ________

Correct AnswerverifiedShow Answer

The only animal in which digestion occurs within cells is

Correct AnswerverifiedShow Answer

Identify the features unique to protostome development.

Correct AnswerverifiedShow Answer

In deuterostomes,

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is NOT a characteristic of all animals?

Correct AnswerverifiedShow Answer

Which of these is a bivalve?

Correct AnswerverifiedShow Answer

In _______, the mouth develops at or near the blastopore.

Correct AnswerverifiedShow Answer

Which of the following are NOT cnidaria?

Correct AnswerverifiedShow Answer

Which of the following features is not one of the key features that led to the success of the arthropods?

Correct AnswerverifiedShow Answer

Name one of the smallest, if not the smallest, animals that are sometimes referred to as "wheel animalcules."

Correct AnswerverifiedShow Answer

Describe the similarities and differences between the comb jellies and cnidarians.

Correct AnswerverifiedBoth of these groups have true tissues, ...View AnswerShow 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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Both of these groups have true tissues, ...
View Answer