Question 1

Radial symmetry is characteristic of animals that

Accepted Answer

A)  filter feed. 
B)  are attached to a substrate. 
C)  are poisonous. 
D)  have tentacles. 
E)  All of the answers are correct. 
A)  filter feed. 
B)  are attached to a substrate. 
C)  are poisonous. 
D)  have tentacles. 
E)  All of the answers are correct.

Question 2

The function of a statolith in a scyphozoan is to

Accepted Answer

A)  maintain balance. 
B)  maintain the shape of the bell. 
C)  sense light. 
D)  facilitate attachment of the polyp stage to the substrate. 
E)  sense gravity. 
A)  maintain balance. 
B)  maintain the shape of the bell. 
C)  sense light. 
D)  facilitate attachment of the polyp stage to the substrate. 
E)  sense gravity.

Question 3

In many protostomes, each embryonic cell develops into a predetermined tissue type which is fixed very early in development. This type of development is called

Accepted Answer

A)  ordained. 
B)  fixed. 
C)  determinate. 
D)  settled. 
E)  certain. 
A)  ordained. 
B)  fixed. 
C)  determinate. 
D)  settled. 
E)  certain.

Question 4

Cestodes are

Accepted Answer

A)  tapeworms. 
B)  parasites of vertebrates. 
C)  contain a scolex to attach to the host. 
D)  have proglottids which are produced by strobilisation. 
E)  All of the answers are correct. 
A)  tapeworms. 
B)  parasites of vertebrates. 
C)  contain a scolex to attach to the host. 
D)  have proglottids which are produced by strobilisation. 
E)  All of the answers are correct.

Question 5

A distinctive feature of phylum Porifera is

Accepted Answer

A)  a gastrovascular cavity with a mouth only for digestion. 
B)  radial symmetry. 
C)  an internal cavity lined by flagellated cells. 
D)  a tubular body with a simple nervous system. 
E)  an exoskeleton of chitin. 
A)  a gastrovascular cavity with a mouth only for digestion. 
B)  radial symmetry. 
C)  an internal cavity lined by flagellated cells. 
D)  a tubular body with a simple nervous system. 
E)  an exoskeleton of chitin.

Exam 39: Simple Animals: Sponges to Flatworms

Radial symmetry is characteristic of animals that

The function of a statolith in a scyphozoan is to

In many protostomes, each embryonic cell develops into a predetermined tissue type which is fixed very early in development. This type of development is called

Cestodes are

A distinctive feature of phylum Porifera is

Nature of Molecules

Biomolecules

The Chemistry of Life

Functioning Cells

Movement Across Membranes

Harvesting Energy

Cells, Tissues and Signals

Cell Division

Inheritance

Genes, Chromosomes and Dna

The Genetic Code

Gene Expression

Genomes, Mutation and Cancer

Viruses

Genetic Engineering and Biotechnology

Reproduction, Growth and Development of Flowering Plants

Structure of Plants

Plant Nutrition, Transport and Adaptation to Stress

Plant Hormones and Growth Responses

Animal Reproduction

Animal Development

Homeostasis: Water, Solutes and Excretion

Gas Exchange in Animals

Circulation

Metabolism, Temperature Regulation and Environmental Stress

Animal and Human Nutrition

Innate Defences and the Immune System

Hormonal Control in Animals

Nervous Systems

Animal Movement

Animal Behaviour

Evolving Life

Evolving Earth

Mechanisms of Evolution

Bacteria

The Protists

Plants

Fungi

Annelids, Molluscs, Nematodes and Arthropods

Echinoderms and Chordates

Australian Biota

Population Ecology

Living in Communities

Ecosystems

Human Impacts

Filters