Question 1

The feeding mode of leeches is described as

Accepted Answer

A) predaceous. 
B) internal parasitism. 
C) external bloodsucking. 
D) predaceous and external bloodsucking. 
E) predaceous, external bloodsucking, and internal parasitism. 
A) predaceous. 
B) internal parasitism. 
C) external bloodsucking. 
D) predaceous and external bloodsucking. 
E) predaceous, external bloodsucking, and internal parasitism.

Question 2

Insects are currently thought to have evolved from

Accepted Answer

A) myriapods. 
B) animals. 
C) algae. 
D) crustaceans. 
E) all of these. 
A) myriapods. 
B) animals. 
C) algae. 
D) crustaceans. 
E) all of these.

Question 3

During the Cambrian,

Accepted Answer

A) animals started a great adaptive radiation. 
B) all major groups of animals originated in the seas. 
C) changes in land masses, climate, and sea level contributed to animal evolution. 
D) coevolution of predators and prey and of parasites and hosts was a factor in evolution. 
E) all of these occurred. 
A) animals started a great adaptive radiation. 
B) all major groups of animals originated in the seas. 
C) changes in land masses, climate, and sea level contributed to animal evolution. 
D) coevolution of predators and prey and of parasites and hosts was a factor in evolution. 
E) all of these occurred.

Question 4

Caenorhabditis elegans is a favorite for genetic studies because of all of the following EXCEPT

Accepted Answer

A) it has the same tissue types as larger animals. 
B) it is transparent. 
C) it has only 959 cells. 
D) it reproduces quickly. 
E) they can be cut in half and used in experiments. 
A) it has the same tissue types as larger animals. 
B) it is transparent. 
C) it has only 959 cells. 
D) it reproduces quickly. 
E) they can be cut in half and used in experiments.

Question 5

Which of the following statements is false?

Accepted Answer

A) The development of a coelom was necessary before organisms could develop a large size. 
B) Segmentation allows increasing specialization of body parts. 
C) The development of a complete digestive tract allows the specialization of regions to carry out a variety of functions. 
D) Organisms with radial symmetry developed into the ultimate predators. 
E) None of these are false. 
A) The development of a coelom was necessary before organisms could develop a large size. 
B) Segmentation allows increasing specialization of body parts. 
C) The development of a complete digestive tract allows the specialization of regions to carry out a variety of functions. 
D) Organisms with radial symmetry developed into the ultimate predators. 
E) None of these are false.

Question 6

Use the figure above to answer questions
  
-A structure that gives the sponges their phylum name is indicated by

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 7

Colonial cnidarians

Accepted Answer

A) include Obelia. 
B) include the Portuguese man-of-war. 
C) include corals. 
D) may harbor dinoflagellate symbionts. 
E) fit all of these descriptions. 
A) include Obelia. 
B) include the Portuguese man-of-war. 
C) include corals. 
D) may harbor dinoflagellate symbionts. 
E) fit all of these descriptions.

Question 8

The silverfish

Accepted Answer

A) have incomplete development. 
B) undergo direct development. 
C) parasitize other insects. 
D) produce large quantities of ammonia waste. 
E) fit none of these descriptions. 
A) have incomplete development. 
B) undergo direct development. 
C) parasitize other insects. 
D) produce large quantities of ammonia waste. 
E) fit none of these descriptions.

Question 9

Which body plan is characterized by simple gas exchange mechanisms, two-way traffic through a highly branched, saclike gut, and a thin, flat body with all cells fairly close to the gut?

Accepted Answer

A) cnidarian 
B) nematode 
C) echinoderm 
D) flatworm 
E) sponge 
A) cnidarian 
B) nematode 
C) echinoderm 
D) flatworm 
E) sponge

Question 10

For roundworms living in the intestine of a vertebrate, the cuticle most probably serves in what capacity?

Accepted Answer

A) water retention 
B) nutrient absorption 
C) protection from digestive enzymes 
D) excretion of metabolic wastes 
E) sensory detection 
A) water retention 
B) nutrient absorption 
C) protection from digestive enzymes 
D) excretion of metabolic wastes 
E) sensory detection

Question 11

Choanoflagellates

Accepted Answer

A) have flagellated collar cells. 
B) may be free-living or colonial. 
C) make signaling molecules and adhesion proteins. 
D) likely share a common ancestor with sponges. 
E) fit all of these descriptions. 
A) have flagellated collar cells. 
B) may be free-living or colonial. 
C) make signaling molecules and adhesion proteins. 
D) likely share a common ancestor with sponges. 
E) fit all of these descriptions.

Question 12

Which of the following is an organism that possesses chaetae and nephridia and exhibits coordinated movements of circular and longitudinal muscle?

Accepted Answer

A) millipede 
B) tapeworm 
C) polychaete 
D) hookworm 
E) flatworm 
A) millipede 
B) tapeworm 
C) polychaete 
D) hookworm 
E) flatworm

Question 13

Four of the five choices listed below relate to flatworms.Select the exception.

Accepted Answer

A) proglottid 
B) parapodia 
C) scolex 
D) flame cell 
E) first group to develop a mesoderm 
A) proglottid 
B) parapodia 
C) scolex 
D) flame cell 
E) first group to develop a mesoderm

Question 14

Which of the following features do bivalves share with sponges?

Accepted Answer

A) lack of symmetry 
B) flagellated collar cells 
C) similar mode of feeding 
D) siphons 
E) none of these 
A) lack of symmetry 
B) flagellated collar cells 
C) similar mode of feeding 
D) siphons 
E) none of these

Question 15

Sponges have which of the following?

Accepted Answer

A) symmetry 
B) organs 
C) anus 
D) spicules 
E) appendages 
A) symmetry 
B) organs 
C) anus 
D) spicules 
E) appendages

Question 16

Which of the following is false about earthworms?

Accepted Answer

A) They are the first group to have a rudimentary brain. 
B) They are scavengers, living on detritus. 
C) They have a closed circulatory system with multiple hearts. 
D) Each segment has muscles, blood vessels, and nerves. 
E) Paired nephridia cleanse the coelomic fluid and discharge wastes. 
A) They are the first group to have a rudimentary brain. 
B) They are scavengers, living on detritus. 
C) They have a closed circulatory system with multiple hearts. 
D) Each segment has muscles, blood vessels, and nerves. 
E) Paired nephridia cleanse the coelomic fluid and discharge wastes.

Question 17

Use the figure above to answer questions 
  
-A gill is indicated by letter

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 18

Which of the following have a flexible cuticle, longitudinal muscles, a complete digestive system, and a false coelom?

Accepted Answer

A) nematodes 
B) cnidarians 
C) flatworms 
D) echinoderms 
E) sponges 
A) nematodes 
B) cnidarians 
C) flatworms 
D) echinoderms 
E) sponges

Question 19

Which of the following phyla is characterized by radially symmetrical members?

Accepted Answer

A) Arthropoda 
B) Cnidaria 
C) Platyhelminthes 
D) Chordata 
E) Annelida 
A) Arthropoda 
B) Cnidaria 
C) Platyhelminthes 
D) Chordata 
E) Annelida

Question 20

Which of the following groups can be distinguished from other arthropods by its two pairs of antennae?

Accepted Answer

A) insects 
B) millipedes 
C) chelicerates 
D) crustaceans 
E) trilobites 
A) insects 
B) millipedes 
C) chelicerates 
D) crustaceans 
E) trilobites

Exam 25: Animals: the Invertebrates

The feeding mode of leeches is described as

Insects are currently thought to have evolved from

During the Cambrian,

Caenorhabditis elegans is a favorite for genetic studies because of all of the following EXCEPT

Which of the following statements is false?

Use the figure above to answer questions -A structure that gives the sponges their phylum name is indicated by

Colonial cnidarians

The silverfish

Which body plan is characterized by simple gas exchange mechanisms, two-way traffic through a highly branched, saclike gut, and a thin, flat body with all cells fairly close to the gut?

For roundworms living in the intestine of a vertebrate, the cuticle most probably serves in what capacity?

Choanoflagellates

Which of the following is an organism that possesses chaetae and nephridia and exhibits coordinated movements of circular and longitudinal muscle?

Four of the five choices listed below relate to flatworms.Select the exception.

Which of the following features do bivalves share with sponges?

Sponges have which of the following?

Which of the following is false about earthworms?

Use the figure above to answer questions -A gill is indicated by letter

Which of the following have a flexible cuticle, longitudinal muscles, a complete digestive system, and a false coelom?

Which of the following phyla is characterized by radially symmetrical members?

Which of the following groups can be distinguished from other arthropods by its two pairs of antennae?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters