Ecology2013-14

1.

1 point

A wolf pack hunts, kills, and feeds on a moose. In this interaction, the wolves are

mutualists.

prey.

hosts.

predators.

2.

1 point

Which of the following descriptions about the organization of an ecosystem is correct?

Species make up populations, which make up communities.

Populations make up species, which make up communities.

Species make up communities, which make up populations.

Communities make up species, which make up populations.

3.

1 point

The branch of biology dealing with interactions among organisms and between organisms and their environment is called

ecology.

modeling.

economy.

recycling.

4.

1 point

All of the following are threats to biodiversity EXCEPT

habitat preservation.

habitat fragmentation.

biological magnification of toxic compounds.

introduced species.

5.

1 point

Each of the following is an abiotic factor in the environment EXCEPT

rainfall.

plant life.

soil type.

temperature.

6.

1 point

In the book Never Cry Wolf, Ootek says "the caribou feeds the wolf, but it is the wolf who keeps the caribou strong." What concept in biology does this best represent?

Theory of Natural Selection

The “Wolf Problem”

Mutualistic relationships

Germ Theory of Disease

7.

1 point

What animals eat both producers and consumers?

herbivores

omnivores

autotrophs

chemotrophs

8.

1 point

A symbiotic relationship in which one organism is harmed and the other benefits is

parasitism.

predation.

mutualism.

commensalism.

9.

1 point

The factor that generally has the greatest effect on determining a region’s climate is its

Closeness to a river

Distance from the equator

Longitude

Abundant plant species

10.

1 point

Something that controls the growth or size of a population is

the growth rate.

a growth factor.

a limiting factor.

the carrying capacity.

11.

1 point

The number of different species in the biosphere or in a particular area is called

ecosystem diversity.

genetic diversity.

species diversity.

biodiversity.

12.

1 point

Arctic foxes steal bits of food buried by the wolves. The wolves use the dens that were originally dug by the foxes. This best matches which type of relationship

Commensalism

Parasitic

Mutualistic

Platonic

13.

1 point

Which of the following is NOT one of the factors that play a role in population growth rate?

emigration

immigration

demography

death rate

14.

1 point

Biodiversity is valuable partly because it

tells us about many other species.

contributes to medicine and agriculture.

provides humans with resistance to disease.

gives us interesting things to look at.

15.

1 point

Human activities, such as the burning of fossil fuels, move carbon through the carbon cycle. Which other processes also participate in the carbon cycle?

Biological processes only

A combination of biological, geological, and chemical processes

Chemical processes only

Geochemical processes only

16.

1 point

Which two biomes have the least precipitation?

boreal forest and temperate woodland and shrubland

tundra and desert

tropical savanna and tropical dry forest

tropical rain forest and temperate grassland

17.

1 point

Plants are

primary consumers.

primary producers.

herbivores.

omnivores.

18.

1 point

Each of the following is a density-dependent limiting factor EXCEPT

temperature.

crowding.

competition.

disease.

19.

1 point

The story of Never Cry Wolf occurs mostly in which biome?

Tiaga

Tropical dry forest

Tundra

Desert

20.

1 point

What is the “wolf problem”, as described to Farley by the Canadian Government?

The wolves are being killed by trappers

The caribou are being killed by trappers

The trappers and being killed by the wolves

The caribou are being killed by wolves

21.

1 point

An organism’s niche is

the range of temperatures that the organism needs to survive.

all the physical and biological factors in the organism’s environment.

a full description of the place an organism lives.

the range of physical and biological conditions in which an organism lives and the way it obtains what it needs to survive and reproduce.

22.

1 point

How do most primary producers make their own food?

by changing water into carbon dioxide

by using light energy to make carbohydrates

by using chemical energy to make carbohydrates

by breaking down remains to make carbon dioxide

23.

1 point

The repeated movement of water between Earth’s surface and the atmosphere is called

the water cycle.

the condensation cycle.

precipitation.

evaporation.

24.

1 point

Which of the following statements best describes human population growth?

The growth rate has remained constant over time

Growth has been exponential in the last few hundred years

Growth continues to increase at the same rate

Birthrate equal death rate

25.

1 point

A benefit of monoculture farming practices is

the use of less water for irrigation.

the ability to grow a lot of food.

disease and pest resistance of the crops.

the ability to spend less money on fertilizer.

26.

1 point

What best describes the relationship between the wolves and the caribou?

Commensalism

Predator/prey

Parasitic

Scavenger/herbivore

27.

1 point

The photic zone

is where chemosynthetic bacteria are the producers.

extends to a depth of about 200 meters.

is deep, cold, and permanently dark.

extends to the bottom of the open ocean.

28.

1 point

One measure of the human impact on the biosphere is called

biological magnification.

biodiversity.

an ecological footprint.

an ecological hot spot.

29.

1 point

Nitrogen fixation is carried out primarily by

bacteria.

plants.

consumers.

humans.

30.

1 point

An increase in the greenhouse effect causes an increase in

Temperature

Water

Oxygen

Carbon dioxide

31.

1 point

The land and water ecosystems that provide the resources that a person uses and that neutralize that person’s wastes is part of that person’s

ecological footprint.

biodiversity.

ecological sustainability.

habitat.

32.

1 point

The average conditions of the atmosphere in a particular area are referred to as the area’s

latitude.

climate.

ecosystem.

weather.

33.

1 point

Demographic transition is change from high birthrates and high death rates to

low birthrates and low death rates.

indefinite growth.

low birthrates and high death rates.

exponential growth.

34.

1 point

Which of the following is true about nonrenewable resources?

They cannot be replaced in a reasonable amount of time after they are used up.

They can be replaced through sustainable development.

Using them up as fast as possible will help keep the environment healthy.

There are plenty for people to use for a very long time.

35.

1 point

Which will reduce competition within a species’ population?

fewer individuals

fewer resources

higher population density

higher birthrate

36.

1 point

Demography is the scientific study of

human populations.

parasitism and disease.

modernized countries.

none of the above