Question 1

Which one of the following features is not found in animals of the phylum Nematoda?

Accepted Answer

A) hydrostatic skeleton 
B) pseudocoelom 
C) complete digestive system 
D) well developed respiratory system 
E) bundles of longitudinal muscles extending the length of the body 
A) hydrostatic skeleton 
B) pseudocoelom 
C) complete digestive system 
D) well developed respiratory system 
E) bundles of longitudinal muscles extending the length of the body

Question 2

Which of the following nematode parasites infects about 30% of American children and are easily controlled by drugs.

Accepted Answer

A) Ascaris 
B) Trichinella 
C) Necator 
D) Filaria 
E) Enterobius 
A) Ascaris 
B) Trichinella 
C) Necator 
D) Filaria 
E) Enterobius

Question 3

Which of the following is not true about pseudocoelomates?

Accepted Answer

A) They possess an internal body cavity called a pseudocoel. 
B) They contain a bony skeleton. 
C) They possess a complete,one-way digestive tract. 
D) The pseudocoel permits resistance to muscle contraction. 
E) They lack a defined circulatory system. 
A) They possess an internal body cavity called a pseudocoel. 
B) They contain a bony skeleton. 
C) They possess a complete,one-way digestive tract. 
D) The pseudocoel permits resistance to muscle contraction. 
E) They lack a defined circulatory system.

Question 4

A major evolutionary innovation found in ________ is the internal extracellular digestion of food.

Accepted Answer

The answer of A major evolutionary innovation found in ________...

Question 5

The human disease,trichinosis,is contracted through

Accepted Answer

A) walking barefoot in soil containing larvae. 
B) eating fertilized eggs. 
C) eating undercooked or raw pork. 
D) eating raw beef. 
E) none of thesE. 
A) walking barefoot in soil containing larvae. 
B) eating fertilized eggs. 
C) eating undercooked or raw pork. 
D) eating raw beef. 
E) none of thesE.

Question 6

Most flatworms are _____________,meaning each individual containing both male and female sexual structures.

Accepted Answer

The answer of Most flatworms are _____________,meaning each individual containing...

Question 7

Sponges are unique in possessing special flagellated cells whose beating drives water through the body cavity.These specialized cells are known as

Accepted Answer

A) cnidocytes. 
B) planulae. 
C) nematocysts. 
D) choanocytes. 
E) spicules. 
A) cnidocytes. 
B) planulae. 
C) nematocysts. 
D) choanocytes. 
E) spicules.

Question 8

You discover an animal that is clearly multicellular,but does not have cells organized into tissues.The animal appears to have radial symmetry.You decide to place this animal in the group _____.

Accepted Answer

The answer of You discover an animal that is clearly...

Question 9

Radially symmetrical marine animals that propel themselves through the water by means of eight comb-like plates of fused cilia belong to the Phylum

Accepted Answer

A) CnidariA. 
B) Ctenophora. 
C) Platyhelminthes. 
D) Eumetazoan. 
E) Parazoa. 
A) CnidariA. 
B) Ctenophora. 
C) Platyhelminthes. 
D) Eumetazoan. 
E) Parazoa.

Question 10

Which one of the following is not a cell type found in the Parazoa or an inclusion produced by a cell?

Accepted Answer

A) osculum 
B) choanocyte 
C) porocyte 
D) amoebocyte 
E) spicule 
A) osculum 
B) choanocyte 
C) porocyte 
D) amoebocyte 
E) spicule

Question 11

Sponges exhibit all of the following general characteristics except

Accepted Answer

A) eating by flow of water through canals and pores. 
B) free-swimming larvae;sessile adults. 
C) lack of specialized tissues and organs. 
D) lack of symmetry (may be radial in small species). 
E) head or appendages,mouth or anus. 
A) eating by flow of water through canals and pores. 
B) free-swimming larvae;sessile adults. 
C) lack of specialized tissues and organs. 
D) lack of symmetry (may be radial in small species). 
E) head or appendages,mouth or anus.

Question 12

Which of the following is not a characteristic of rotifers?

Accepted Answer

A) bilaterally symmetrical 
B) corona is food gathering organ 
C) live on mouthparts of lobsters 
D) complete gut with mouth and anus 
E) most occur in fresh water 
A) bilaterally symmetrical 
B) corona is food gathering organ 
C) live on mouthparts of lobsters 
D) complete gut with mouth and anus 
E) most occur in fresh water

Question 13

Which one of the following statements about Hydra is true?

Accepted Answer

A) has a freshwater habitat. 
B) has a medusa stage. 
C) has a salt water habitat. 
D) The planula larva transforms into a mesusa. 
E) it is colonial not solitary. 
A) has a freshwater habitat. 
B) has a medusa stage. 
C) has a salt water habitat. 
D) The planula larva transforms into a mesusa. 
E) it is colonial not solitary.

Question 14

All of the following are true about Cnidarians except

Accepted Answer

A) they are widespread and abundant especially in shallow,warm-temperature or subtropical waters. 
B) they are basically gelatinous in composition. 
C) their bodies are made up of distinct organs. 
D) they exist either as polyps or medusae. 
E) they contain specialized cells called "cnidocytes" within which nematocysts are found. 
A) they are widespread and abundant especially in shallow,warm-temperature or subtropical waters. 
B) they are basically gelatinous in composition. 
C) their bodies are made up of distinct organs. 
D) they exist either as polyps or medusae. 
E) they contain specialized cells called "cnidocytes" within which nematocysts are found.

Question 15

Phylum Platyhelminthes is characterized by all of the following except

Accepted Answer

A) bilateral symmetry. 
B) solid bodies with an inner digestive cavity. 
C) flat ribbon-shaped bodies with dorso-ventral parts and anterior head. 
D) all are free-living. 
E) possess an excretory system. 
A) bilateral symmetry. 
B) solid bodies with an inner digestive cavity. 
C) flat ribbon-shaped bodies with dorso-ventral parts and anterior head. 
D) all are free-living. 
E) possess an excretory system.

Question 16

Choose the letter of the best match from the following:
-Radially symmetrical polyps and medusae.

Accepted Answer

A) Cnidaria 
B) Nematoda 
C) Platyhelminthes 
D) Porifera 
E) Ctenophora 
A) Cnidaria 
B) Nematoda 
C) Platyhelminthes 
D) Porifera 
E) Ctenophora

Question 17

Which one of the following statements comparing the parasitic flatworms (flukes and tapeworms)is false?

Accepted Answer

A) Flukes are ectoparasites;tapeworms are endoparasites. 
B) Both parasitic flukes and tapeworms have life cycles with two or more hosts. 
C) Flukes attach to their hosts with suckers;tapeworms use a scolex. 
D) Most parasitic flukes and tapeworms have lost several features seen in free-living flatworms like Dugesia. 
E) Most parasitic flukes and tapeworms produce huge numbers of eggs and sperm. 
A) Flukes are ectoparasites;tapeworms are endoparasites. 
B) Both parasitic flukes and tapeworms have life cycles with two or more hosts. 
C) Flukes attach to their hosts with suckers;tapeworms use a scolex. 
D) Most parasitic flukes and tapeworms have lost several features seen in free-living flatworms like Dugesia. 
E) Most parasitic flukes and tapeworms produce huge numbers of eggs and sperm.

Question 18

Which one of the following features is not found in animals of the phylum Ctenophora?

Accepted Answer

A) radial-like symmetry 
B) special food-capturing cell type called a colloblast 
C) swimming by lateral undulations of their body 
D) bioluminescence 
E) muscle cells derived from mesoderm 
A) radial-like symmetry 
B) special food-capturing cell type called a colloblast 
C) swimming by lateral undulations of their body 
D) bioluminescence 
E) muscle cells derived from mesoderm

Question 19

Which one of the following is not true about Porifera?

Accepted Answer

A) they lack tissues 
B) most members of this phylum lack symmetry 
C) they remain nonsessile throughout their entire life cycle 
D) defend themselves by producing chemicals that repel potential predators 
E) if cells are separated,they will seek one another out and reassemble the entire sponge 
A) they lack tissues 
B) most members of this phylum lack symmetry 
C) they remain nonsessile throughout their entire life cycle 
D) defend themselves by producing chemicals that repel potential predators 
E) if cells are separated,they will seek one another out and reassemble the entire sponge

Question 20

Which one of the following features does not apply to animals in the phylum Nematoda?

Accepted Answer

A) molt their flexible thick cuticle to grow 
B) capable of complex movement due to circular and longitudinal muscles 
C) use muscular pharynx to draw food into digestive tract 
D) parasitic forms often have piercing organs called stylets in the mouth 
E) abundant and diverse group,both freshwater and marine,free-living and parasitic 
A) molt their flexible thick cuticle to grow 
B) capable of complex movement due to circular and longitudinal muscles 
C) use muscular pharynx to draw food into digestive tract 
D) parasitic forms often have piercing organs called stylets in the mouth 
E) abundant and diverse group,both freshwater and marine,free-living and parasitic

Exam 33: Noncoelomate Invertebrates

Which one of the following features is not found in animals of the phylum Nematoda?

Which of the following nematode parasites infects about 30% of American children and are easily controlled by drugs.

Which of the following is not true about pseudocoelomates?

A major evolutionary innovation found in ________ is the internal extracellular digestion of food.

The human disease,trichinosis,is contracted through

Most flatworms are _____________,meaning each individual containing both male and female sexual structures.

Sponges are unique in possessing special flagellated cells whose beating drives water through the body cavity.These specialized cells are known as

You discover an animal that is clearly multicellular,but does not have cells organized into tissues.The animal appears to have radial symmetry.You decide to place this animal in the group _____.

Radially symmetrical marine animals that propel themselves through the water by means of eight comb-like plates of fused cilia belong to the Phylum

Which one of the following is not a cell type found in the Parazoa or an inclusion produced by a cell?

Sponges exhibit all of the following general characteristics except

Which of the following is not a characteristic of rotifers?

Which one of the following statements about Hydra is true?

All of the following are true about Cnidarians except

Phylum Platyhelminthes is characterized by all of the following except

Choose the letter of the best match from the following: -Radially symmetrical polyps and medusae.

Which one of the following statements comparing the parasitic flatworms (flukes and tapeworms)is false?

Which one of the following features is not found in animals of the phylum Ctenophora?

Which one of the following is not true about Porifera?

Which one of the following features does not apply to animals in the phylum Nematoda?

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes Mapping and the Meiosis - Inheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

Genomics

Cellular Mechanisms of Development

Genes Within Populations

The Evidence for Evolution

The Origin of Species

Systematics and the Phylogenetic Revolution

Genome Evolution

Evolution of Development

The Tree of Life

Viruses

Prokaryotes

Protists

Overview of Green Plants

Fungi

Overview of Animal Diversity

Coelomate Invertebrates

Vertebrates

Plant Form

Vegetative Plant Development

Transport in Plants

Plant Nutrition and Soils

Plant Defense Responses

Sensory Systems in Plants

Plant Reproduction

The Animal Body and Principles of Regulation

The Nervous System

Sensory Systems

The Endocrine System

The Musculoskeletal System

The Digestive System

The Respiratory System

The Circulatory System

Osmotic Regulation and the Urinary System

The Immune System

The Reproductive System

Animal Development

Behavioral Biology

Population Ecology

Community of Ecology

Dynamics of Ecosystems

The Biosphere

Conservation Biology