Quiz about Unit 1 Exam (E.S.)

Question 1

Consumers are classified as ________ because they are unable to make their own food.

Accepted Answer

Heterotrophs

Answer

Autotrophs

Answer

Omnivores

Answer

Carnivores

Question 2

The birds, insects, plants, fungi, and other organisms that reside in a nearby wetland.

Accepted Answer

Biological community

Answer

Organism

Answer

Population

Answer

Molecules

Question 3

The main factor that determines what type of plants grow in a biome is

Accepted Answer

Both temperature and precipitation

Answer

Temperature

Answer

Precipitation

Answer

Altitude

Answer

Both temperature and altitude

Question 4

All of life on Earth exists in

Accepted Answer

Biosphere

Answer

A single ecosystem

Answer

A single biome

Answer

Hydrosphere

Question 5

An example of a population is

Accepted Answer

All maple trees in the forest

Answer

All trees in the forest

Answer

All animals in the forest

Question 6

At each stage of the trophic levels, how much energy is lost?

Accepted Answer

90%

Answer

10%

Answer

99%

Question 7

Which of the following is correctly arranged from the lowest trophic level to the highest trophic level?

Accepted Answer

Grass, mouse, snake, eagle

Answer

Bacteria, frog, eagle, hawk

Answer

Algae, deer, wolf, hawk

Question 8

When an ecosystem contains many different species, there are usually a high number of links in its food web. How does this affect the sustainability of the ecosystem?

Accepted Answer

Typically, if one link in the food web is removed, the ecosystem will remain stable.

Answer

Typically, if one link in the food web is added, the ecosystem will change its location.

Answer

Typically, if one link in the food web is removed, the ecosystem will no longer exist.

Answer

Typically, if one link in the food web is added, the ecosystem will destabilize.

Question 9

Which is an abiotic factor?

Accepted Answer

an ocean current of cold water

Answer

a forest of deciduous trees

Answer

a polar bear on ice

Answer

fungi and moss on a rotting log

Question 10

Which is an autotroph?

Accepted Answer

algae

Answer

mushroom

Answer

sparrow

Answer

wolf

Question 11

Primary producers are organisms that

Accepted Answer

Use energy they take in from the environment to convert inorganic molecules into complex organic molecules.

Answer

Rely on other organisms for their energy and food supply.

Answer

Consume plants and animal remains and other dead matter.

Answer

Obtain energy by eating only plants.

Question 12

The total variety of organisms in the biosphere is known as

Accepted Answer

Biodiversity

Answer

Species diversity

Answer

Ecosystem diversity

Answer

Genetic diversity

Question 13

Which of the following is the best reason to protect a section of an oak forest?

Accepted Answer

to maintain the diversity of the living environment

Answer

to prevent oak trees from reproducing too quick

Answer

to cause the extinction of undesirable animal species

Answer

to provide more land for agricultural purposes

Question 14

Sustainability is defined as the ability of an ecosystem to survive over time. How does biodiversity affect the sustainability of an ecosystem?

Accepted Answer

It helps to keep the ecosystem balanced.

Answer

It introduces fewer new species of organisms.

Answer

It allows organisms to avoid competition.

Answer

It creates a constant state of change.

Question 15

Why do higher trophic levels in most ecosystems contain fewer organisms than lower trophic levels?

Accepted Answer

Energy available for use to the highest trophic level is small.

Answer

Energy available for use to the lowest trophic level is small.

Answer

Energy available for use to the highest trophic level is large.

Answer

Energy available for use to the highest and lowest trophic levels is the same.

Question 16

What is the ultimate function of ecological succession in an environment?

Accepted Answer

to rebuild biodiversity through natural stages

Answer

to create different types of environments on Earth

Answer

to form environments that can never be destroyed

Answer

to limit the kinds of organisms that live in an environment

Question 17

After pioneer plants begin their role in the process of ecological succession, what is the most likely organism to follow?

Accepted Answer

weeds

Answer

trees

Answer

moss

Answer

shrubs

Question 18

Ecological succession is the

Accepted Answer

process of change in an ecological community over time.

Answer

passing down of advantageous traits to offspring.

Answer

an organism's ability to survive an environmental change.

Answer

the creation of a new species within an ecosystem.

Question 19

Which of the following is an example of secondary succession?

Accepted Answer

growth of plants after a forest is destroyed by fire

Answer

breaking down of bare rock by fungi and mosses

Answer

pioneer plants begin to grow after glacial melting

Answer

appearance of weeds in cracks in a concrete surface

Question 20

What is one difference between primary and secondary succession?

Accepted Answer

Secondary succession begins on soil and primary succession begins on virtually lifeless areas.

Answer

Primary succession is slow and secondary succession is rapid.

Answer

Primary succession modifies the environment, and secondary succession does not.

Answer

Secondary succession begins with lichens and primary succession begins with trees.

Question 21

A tour guide taking a group through Costa Rica describes it as a lush, moist, tropical rainforest.

Accepted Answer

Ecosystem

Answer

Population

Answer

Biological community

Answer

Biosphere

Question 22

Which of the following refers to where an organism lives and the properties of its surroundings?

Accepted Answer

Ecosystem

Answer

Vicariance

Answer

Biosignature

Answer

Environment

Question 23

Which of the following statements is NOT true of consumers?

Accepted Answer

They are able to synthesize their own food.

Answer

They receive their energy indirectly from the sun.

Answer

They are also called heterotrophs.

Answer

None are correct.

Question 24

Which of the following describes soil and temperature in an ecosystem?

Accepted Answer

Abiotic

Answer

Biotic

Answer

Unnecessary factors

Answer

All of the above

Question 25

A(n) _____________ species is one that moves into an ecosystem as a result of human intervention.

Accepted Answer

Invasive

Answer

Endangered

Answer

Endemic

Question 26

Which species has a more imminent danger of extinction throughout all of its range?

Accepted Answer

Endangered species

Answer

Endemic species

Answer

Invasive species

Answer

Threatened species

Question 27

Which biome has the largest diversity of animals and plants?

Accepted Answer

Tropical Rainforest

Answer

Taiga

Answer

Desert

Answer

Tundra

Question 28

Which of the following best describes a tropical rain forest?

Accepted Answer

species of animals with specialized ways of surviving in order to avoid competition

Answer

dense, thick soil that supports a dense layer of plants on the forest floor

Answer

plants and animals that are very similar due to year-round warmth and moisture

Question 29

Which of the following is not true about temperate deciduous forests?

Accepted Answer

Trees grow lush green leaves in the spring, but lose their leaves in late summer.

Answer

The soil is rich, and plants cover much of the forest floor.

Answer

Animals such as squirrels, bears, and deer find food in the form of nuts, berries, and leaves.

Question 30

The Taiga is

Accepted Answer

a forest biome dominated by coniferous trees, such as pine, fir, and spruce

Answer

found mostly in Africa.

Answer

a cold, treeless, desert-like biome found near the North and South Poles.

Answer

a dry, rocky biome found in the central part of South America.

Unit 1 Exam (E.S.)

31 questions