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Introduction to Ecology

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Complete the questions below. Ensure you check your spelling. 1. What is Ecology?

a)

The study of how organisms interact with each other and their physical environment

b)

The study of the importance of different ecosystems

c)

The study of all known living organisms

2.

Is the sun an abiotic or biotic factor?

a)

Abiotic

b)

Biotic

3.

A plant is an autotroph it is also called?

a)

Heterotroph

b)

Consumer

c)

Producer

4.

Which of these descriptions is for the term "community"?

a)

All of the populations of different species in a given area at a given time.

b)

All of the ecosystems in the world.

c)

All of the populations in a given area, their physical environment and the influence of abiotic factors.

5.

Which ecological level of organization is shown in the image above?

a)

Biome

b)

Community

c)

Ecosystem

6.

A lion that eats a zebra, that eats grass is a …

a)

Producer

b)

Secondary Consumer

c)

Primary Consumer

7.

As nutritional energy passes through (up) the food chain, energy is

a)

Lost by 10%

b)

Gained by 10%

c)

Lost by 100%

8.

Identify scenario as primary or secondary succession A forest is established and a fire destroys acres of land. The soil still contains nutrients it needs to grow in 150 years.

a)

Primary Succession

b)

Secondary Succession

9.

Please choose all the examples of limiting factors

a)

Water

b)

Food

c)

Space

d)

All of the above

10.

Biodiversity is the variety of living organisms in an area. Where is the most biodiversity found?

a)

Near the equator

b)

Above the equator

c)

Below the equator

11.

What type of population growth curve occurs in areas with unlimited resources (enough water, land, and food)?

a)

Exponential

b)

Logistic

12.

A grasshopper is a herbivore that feeds mainly on grasses, weeds, shrubbery, and leaves. It is a

a)

Primary Consumer

b)

Secondary Consumer

c)

Tertiary Consumer

13.

What is the type of relationship between a clownfish and an anemone?

a)

Mutualism

b)

Commensalism

c)

Parasitism

14.

One organism is benefited while the other is harmed is an example of what symbiotic relationship?

a)

Parasitism

b)

Mutualism

c)

Commensalism

15.

A buffalo walks around and mosquitos begin to encircle it. A egret bird then eats the mosquitos that the buffalo stirred up. What type of symbiotic relationship is being described?

a)

Mutualism

b)

Commensalism

c)

Parasitism

16.

Under which key process of the carbon cycle does dead organisms fossilize over thousands and millions of years and form fossil fuels?

a)

Photosynthesis

b)

Fossilization

c)

Cellular respiration

17.

What is the process that takes the Nitrogen gas in the air and fixes it (converts it) to ammonia?

a)

Nitrogen Fixation

b)

Denitrification

c)

Assimilation

18.

Storm water that picks up pollutants (such as fertilizer) and then flows it into our lakes, rivers, and streams is called?

a)

Weathering

b)

Runoff

c)

Sedimentation

19.

The biogeochemical process that lifts rock up from ocean floors onto land is called?

a)

Runoff

b)

Uplift

c)

Weathering

20.

Biodiversity is important for medicinal purposes because medicines are made from plants and animals found in nature.

a)

True

b)

False