Question 1

Which Ecdysozoan phylum contains three-quarters of the known animal species?

Accepted Answer

A) Nemertea 
B) Annelida 
C) Arthropoda 
D) Nematoda 
A) Nemertea 
B) Annelida 
C) Arthropoda 
D) Nematoda

Question 2

Which of the following lineages of Cnidarians have both polyp and medusa stages in their life cycles-with the polyp stage typically forming a colony-and includes species of Obelia?

Accepted Answer

A) Anthozoa 
B) Trematoda 
C) Hydrozoa 
D) Cubozoa 
A) Anthozoa 
B) Trematoda 
C) Hydrozoa 
D) Cubozoa

Question 3

Which Lophotrochozoan phylum includes members that have a wheel-like, ciliated, food-gathering organ around their heads called a corona?

Accepted Answer

A) Mollusca 
B) Rotifera 
C) Nemertea 
D) Platyhelminthes 
A) Mollusca 
B) Rotifera 
C) Nemertea 
D) Platyhelminthes

Question 4

What term refers to specialized cells that serve as a simple excretory system in flatworms?

Accepted Answer

A) choanocytes 
B) cnidocytes 
C) tentacles 
D) flame cells 
A) choanocytes 
B) cnidocytes 
C) tentacles 
D) flame cells

Question 5

Members of the order Hemiptera (true bugs) go through postembryonic development called incomplete metamorphosis. What are the stages of this process?

Accepted Answer

A) several instars of often wormlike larvae, followed by a stage where they are a sessile pupa, and then ending in an adult stage that is very different from the larval stages 
B) a series of nymph instars that lack functional wings, ending with an adult instar with functional wings 
C) a single, wingless nymph instar followed by several winged adult instars 
D) a series of young instars that become more and more like an adult, ending with a wingless adult instar 
A) several instars of often wormlike larvae, followed by a stage where they are a sessile pupa, and then ending in an adult stage that is very different from the larval stages 
B) a series of nymph instars that lack functional wings, ending with an adult instar with functional wings 
C) a single, wingless nymph instar followed by several winged adult instars 
D) a series of young instars that become more and more like an adult, ending with a wingless adult instar

Question 6

In bristle worms, what is the name of paired, fleshy extensions of the body wall that are used for locomotion and gas exchange?

Accepted Answer

A) setae 
B) parapodia 
C) septa 
D) metanephridia 
A) setae 
B) parapodia 
C) septa 
D) metanephridia

Question 7

Which Lophotrochozoan phylum includes earthworms, bristle worms, and leeches?

Accepted Answer

A) Platyhelminthes 
B) Nemertea 
C) Rotifera 
D) Annelida 
A) Platyhelminthes 
B) Nemertea 
C) Rotifera 
D) Annelida

Question 8

Which Ecdysozoan phylum contains members that have a segmented body encased in a rigid exoskeleton made of chitin plus other materials?

Accepted Answer

A) Annelida 
B) Nemertea 
C) Nematoda 
D) Arthropoda 
A) Annelida 
B) Nemertea 
C) Nematoda 
D) Arthropoda

Exam 27: Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Which Ecdysozoan phylum contains three-quarters of the known animal species?

Which of the following lineages of Cnidarians have both polyp and medusa stages in their life cycles-with the polyp stage typically forming a colony-and includes species of Obelia?

Which Lophotrochozoan phylum includes members that have a wheel-like, ciliated, food-gathering organ around their heads called a corona?

What term refers to specialized cells that serve as a simple excretory system in flatworms?

Members of the order Hemiptera (true bugs) go through postembryonic development called incomplete metamorphosis. What are the stages of this process?

In bristle worms, what is the name of paired, fleshy extensions of the body wall that are used for locomotion and gas exchange?

Which Lophotrochozoan phylum includes earthworms, bristle worms, and leeches?

Which Ecdysozoan phylum contains members that have a segmented body encased in a rigid exoskeleton made of chitin plus other materials?

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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