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Science F2 Chapter 2.3.1 : Interdependence among organisms

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

A habitat is the natural surroundings or home of an organism.

a)

True

b)

False

2.

A group of organisms that have common characteristics and can reproduce to breed offsprings is called .......

a)

ecosystem

b)

community

c)

species

d)

population

3.

A group of organisms of the same species that live in the same habitat is called .....

a)

species

b)

population

c)

community

d)

ecosystem

4.

A community is a few species of different organisms that live together in one habitat and have mutual interaction with one another.

a)

True

b)

False

5.

An ecosystem is a few communities that live together in one habitat and have mutual interaction with one another including all the non living components such as water, air and soil.

a)

True

b)

False

6.

Which example shows a relationship between a living things and a nonliving thing?

a)

An insect is food for a salmon

b)

Water carries a rock downstream

c)

A tree removes carbon dioxide from the air

d)

A flower makes food for a butterfly

7.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
8.

.............. includes all living and non-living things in an environment.

a)

Population

b)

Niche

c)

Abitotic

d)

Ecosystem

9.

What would most likely happen if an ecosystem no longer received sunlight?

a)

The number of herbivores would increase

b)

The number of plants would increase

c)

All organisms would adapt

d)

All living organisms would eventually die

10.

How does energy enter an ecosystem?

a)

Sunlight

b)

Soil

c)

Animals

d)

Invasive species

11.

All the members of one species that live within an area of an ecosystem are called ............

a)

population

b)

community

c)

niche

12.

An individual living thing is a/an ...............

a)

habitat

b)

ecosystem

c)

organism

d)

population

13.

The different populations that interact with each other in the same area are called ..............

a)

ecosystem

b)

food chain

c)

food web

d)

community

e)

niche

14.

What word describes a trait that helps an organism survive in its environment?

a)

Natural selection

b)

Mutation

c)

Camouflage

d)

Adaptation

15.

Polar bears have an adaptation that allows them to swim. What is most likely this adaptation?

a)

White coat

b)

Fat belly

c)

Small eyes

d)

Webbed feet

16.

Which lists the levels of an ecosystem in order from smallest to largest?

a)

Ecosystem, community, population, organism

b)

Community, population, organism, ecosystem

c)

Organism, population, community, ecosystem

d)

Organism, community, population, ecosystem

17.

What needs of an organism are provided by its habitat?

a)

Organism

b)

Population

c)

Food, shelter, water

d)

Species

18.

What is a group of organisms that are physically similar and can mate with each other and reproduce offspring that can mate and reproduce?

a)

Population

b)

Community

c)

Species

d)

Ecosystem

19.

Which of the following is an example of a population?

a)

Cats and dogs in your neighborhood

b)

Bushes and grass in a park

c)

The rocks in a rock collection

d)

Gray wolves in a forest

20.
What level of organization can be observed in the image?
a)
Species
b)
Population
c)
Community
d)
Ecosystem