chapter 1

Question 1

The term “ecology” is defined as the study of the

Answer 1

relationship between organisms and their environment

Question 2

What is a cornerstone of the science of ecology?

Answer 2

Darwin’s theory of natural selection

Question 3

Moisture and concentration of oxygen

Answer 3

are parts of n organisms environment

Question 4

The interaction of a biotic community and its abiotic environment is referred to as an

Answer 4

ecosystem

Question 5

What is considered an abiotic component of the ecosystem?

Answer 5

Temperature

Question 6

A biome is

Answer 6

a broad-scale region dominated by similar types of ecosystems

Question 7

All populations of different species living and interacting within an ecosystem are referred to collectively as a

Answer 7

community

Question 8

What is an example of a biome

Answer 8

Tropical rainforest

Question 9

A predator consuming prey would occur at the organizational level of the

Answer 9

community

Question 10

Broad scale regions dominated by similar types of ecosystems are called

Answer 10

biomes

Question 11

The organization of ecological systems from the lowest to the highest level of organization

Answer 11

individual, population, community, ecosystem, biome, biosphere

Question 12

What is am appropriate question to an investigation as the population level

Answer 12

What is the relationship between resource availability and birthrate

Question 13

An ecologist who focused on the individual could study all of the following

Answer 13

Behavior, physiology and morphology

Question 14

What is an appropriate question to investigate at the landscape level

Answer 14

which factors give rise to the spatial extent and arrangement of the various ecosystems

Question 15

A hypothesis refers to a

Answer 15

testable explanation for an observed phenomenon

Question 16

An integrated set of hypotheses that together explain a broader set of observations is considered a

Answer 16

theory

Question 17

An ecologist conducts a greenhouse experiment to study the effect of nitrogen concentration on the productivity of sunflower seedlings. what is the independent variable in this experiment

Answer 17

Concentration of nitrogen

Question 18

Which model would you use to examine the relationship between nitrogen concentration and plant growth

Answer 18

Linear regression

Question 19

A model is used by ecologists to

Answer 19

make predictions about how nature works using a set of explicit assumptions

Question 20

Because ecology relies on any different traditional branched of science, it is considered

Answer 20

interdisciplinary