Question 1

A woman standing and watching the stars on a cool, calm night will lose most of her body heat by ________.

Accepted Answer

A)  radiation 
B)  convection 
C)  conduction 
D)  evaporation 
A)  radiation 
B)  convection 
C)  conduction 
D)  evaporation

Question 2

Compared with a smaller cell, a larger cell of the same shape has ________.

Accepted Answer

A)  less surface area 
B)  less surface area per unit of volume 
C)  a smaller average distance between its mitochondria and the external source of oxygen 
D)  a smaller cytoplasm-to-nucleus ratio 
A)  less surface area 
B)  less surface area per unit of volume 
C)  a smaller average distance between its mitochondria and the external source of oxygen 
D)  a smaller cytoplasm-to-nucleus ratio

Question 3

Most land-dwelling invertebrates and all of the amphibians ________.

Accepted Answer

A)  are ectothermic organisms with variable body temperatures 
B)  alter their metabolic rates to maintain a constant body temperature of 37°C 
C)  are endotherms but become thermo-conformers when they are in water 
D)  become more active when environmental temperatures drop below 15°C 
A)  are ectothermic organisms with variable body temperatures 
B)  alter their metabolic rates to maintain a constant body temperature of 37°C 
C)  are endotherms but become thermo-conformers when they are in water 
D)  become more active when environmental temperatures drop below 15°C

Question 4

You are studying a large tropical reptile that has a high and relatively stable body temperature. How do you determine whether this animal is an endotherm or an ectotherm?

Accepted Answer

A)  You know from its high and stable body temperature that it must be an endotherm. 
B)  You subject this reptile to various temperatures in the lab and find that its body temperature and metabolic rate change with the ambient temperature. You conclude that it is an ectotherm. 
C)  You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm. 
D)  You measure the metabolic rate of the reptile, and because it is higher than that of a related species that lives in temperate forests, you conclude that this reptile is an endotherm and its relative is an ectotherm. 
A)  You know from its high and stable body temperature that it must be an endotherm. 
B)  You subject this reptile to various temperatures in the lab and find that its body temperature and metabolic rate change with the ambient temperature. You conclude that it is an ectotherm. 
C)  You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm. 
D)  You measure the metabolic rate of the reptile, and because it is higher than that of a related species that lives in temperate forests, you conclude that this reptile is an endotherm and its relative is an ectotherm.

Question 5

In mammals, GH (growth hormone)is an endocrine signal that stimulates repair and growth of various tissues. Which of the following would be required for a tissue to respond to growth hormone?

Accepted Answer

A)  the presence of a growth hormone receptor on the responding tissue 
B)  the responding tissue must be muscle 
C)  nerve cells must attach to the responding tissue for growth hormone to work 
D)  a voltage change must occur 
A)  the presence of a growth hormone receptor on the responding tissue 
B)  the responding tissue must be muscle 
C)  nerve cells must attach to the responding tissue for growth hormone to work 
D)  a voltage change must occur

Question 6

Which of the following animals uses the largest percentage of its energy budget for homeostatic regulation?

Accepted Answer

A)  marine jelly (an invertebrate) 
B)  snake in a temperate forest 
C)  desert insect 
D)  desert bird 
A)  marine jelly (an invertebrate) 
B)  snake in a temperate forest 
C)  desert insect 
D)  desert bird

Question 7

All animals, whether large or small, have ________.

Accepted Answer

A)  an external body surface that is dry 
B)  a basic body plan that resembles a two-layered sac 
C)  a body surface covered with hair to keep them warm 
D)  most of their cells in contact with an aqueous medium 
A)  an external body surface that is dry 
B)  a basic body plan that resembles a two-layered sac 
C)  a body surface covered with hair to keep them warm 
D)  most of their cells in contact with an aqueous medium

Question 8

An example of a properly functioning homeostatic control system is seen when ________.

Accepted Answer

A)  the core body temperature of a runner rises gradually from 37°C to 45°C 
B)  the kidneys excrete salt into the urine when dietary salt levels rise 
C)  a blood cell shrinks when placed in a solution of salt and water 
D)  the blood pressure increases in response to an increase in blood volume 
A)  the core body temperature of a runner rises gradually from 37°C to 45°C 
B)  the kidneys excrete salt into the urine when dietary salt levels rise 
C)  a blood cell shrinks when placed in a solution of salt and water 
D)  the blood pressure increases in response to an increase in blood volume

Exam 40: Basic Principles of Animal Form and Function

A woman standing and watching the stars on a cool, calm night will lose most of her body heat by ________.

Compared with a smaller cell, a larger cell of the same shape has ________.

Most land-dwelling invertebrates and all of the amphibians ________.

You are studying a large tropical reptile that has a high and relatively stable body temperature. How do you determine whether this animal is an endotherm or an ectotherm?

In mammals, GH (growth hormone)is an endocrine signal that stimulates repair and growth of various tissues. Which of the following would be required for a tissue to respond to growth hormone?

Which of the following animals uses the largest percentage of its energy budget for homeostatic regulation?

All animals, whether large or small, have ________.

An example of a properly functioning homeostatic control system is seen when ________.

Evolution, the Themes of Biology, and Scientific Inquiry

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Viruses

DNA Tools and Biotechnology

Genomes and Their Evolution

Descent with Modification: A Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity II: The Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Vascular Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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