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Introduction to Ecology

Total questions: 20

Worksheet time: 3hrs 20mins

Name
Class
Date
1.

The study of the interactions between organisms and their environment is:

a)

Ecology

b)

Microbiology

c)

Biology

d)

Evolution

2.

All living things in a given area, living and non-living.

a)

Ecosystem

b)

Biotic

c)

Community

d)

Species

3.

All the organisms of the same species living in the same area

a)

Community

b)

Population

c)

Habitat

d)

Ecosystem

4.

A group of very similar organisms that can mate and reproduce offspring of the same type

a)

Community

b)

Population

c)

Species

d)

Niche

5.

An entity that displays all of the characteristics of life. Has the ability to maintain homeostasis

a)

animal

b)

organism

c)

species

d)

trophosphere

6.

Which of the following is the highest level of organization within the environment?

a)

population

b)

organism

c)

ecosystem

d)

biosphere

7.
Is a fern an abiotic or biotic factor? 
a)
abiotic
b)
biotic
8.
Is a weather an abiotic or biotic factor? 
a)
abiotic
b)
biotic
9.
Is sunlight an abiotic or biotic factor? 
a)
abiotic
b)
biotic
10.
An ecosystem is made up of all the ___________ and _____________ factors in an area. 
a)
not/without
b)
Limiting Factor/ Carrying Capacity
c)
Living/ Nonliving
d)
life/ biotic factor
11.
Rock
a)
Biotic
b)
Abiotic
12.

An organism whose presence, absence or abundance reflects a specific environmental condition:

a)

keystone species

b)

exotic species

c)

indicator species

d)

native species

e)

endangered species

13.

Species that is NOT native to a specific location AND has a tendency to spread/damage the environment:

a)

native species

b)

invasive species

c)

endemic species

d)

exotic species

e)

extinct species

14.

Species that are crucial to the functioning of an ecosystem

a)

keystone species

b)

exotic species

c)

invasive species

d)

indicator species

e)

endangered species

15.

Species that is NOT native to a particular region.

a)

exotic species

b)

endangered species

c)

native species

d)

endemic species

e)

indicator species

16.

Elephant

a)

K-selected

b)

R-Selected

17.

Bacteria

a)

K-selected

b)

R-selected

18.

Two species of fish hunt the same prey in the same bay, one of them declines over time until it is no longer in the bay. This is an example of

a)

overshoot

b)

competitive exclusion

c)

resource partitioning

d)

community partitioning

19.

When certain exotic species are introduced into a geographical area they become invasive mainly because

a)

The invaded land has unlimited resources for the introduced species

b)

The population of the introduced species in the invaded area is very low

c)

The invaded land does not have its natural predator

d)

Introduced species do not face any competition in the introduced land

20.

the differentiation of niches that enables similar species to coexist in a community

a)

character displacement

b)

climax community

c)

resource partitioning

d)

pioneer species