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Environmental Organizations & Food Webs

Total questions: 26

Worksheet time: 14mins

Name
Class
Date
1.

What is an Organism?

a)

A group or collection of organisms of different species that live together in the same location and interact with each other.

b)

An individual form of life that is capable of growing and reproducing, and have one or more cells. Animals, plants and bacterium are all apart of this term.

c)

The number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding.

d)

A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. They contain biotic or living, parts, as well as abiotic factors, or non-living parts.

2.

What is an Ecosystem?

a)

A group or collection of organisms of different species that live together in the same location and interact with each other.

b)

An individual form of life that is capable of growing and reproducing, and have one or more cells. Animals, plants and bacterium are all apart of this term.

c)

The number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding.

d)

A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. They contain biotic or living, parts, as well as abiotic factors, or non-living parts.

3.

What is a Population?

a)

A group or collection of organisms of different species that live together in the same location and interact with each other.

b)

An individual form of life that is capable of growing and reproducing, and have one or more cells. Animals, plants and bacterium are all apart of this term.

c)

The number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding.

d)

A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. They contain biotic or living, parts, as well as abiotic factors, or non-living parts.

4.

What is a Community?

a)

A group or collection of organisms of different species that live together in the same location and interact with each other.

b)

An individual form of life that is capable of growing and reproducing, and have one or more cells. Animals, plants and bacterium are all apart of this term.

c)

The number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding.

d)

A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. They contain biotic or living, parts, as well as abiotic factors, or non-living parts.

5.

What is a Biome?

a)

A large group of similar ecosystems. They have similar vegetation and climate. It is classified based on the climate, plants and animals that make their homes there.

b)

The part of Earth where life exists. It extends from the deepest parts of the ocean to high in the air where all the plant spores drift, it's the sum of all of the ecosystems on this planet.

6.

What is a Biosphere?

a)

A large group of similar ecosystems. They have similar vegetation and climate. It is classified based on the climate, plants and animals that make their homes there.

b)

The part of Earth where life exists. It extends from the deepest parts of the ocean to high in the air where all the plant spores drift, it's the sum of all of the ecosystems on this planet.

7.

Which statement is most likely true?

a)

Organism to Population to Community to Ecosystem to Biome to Biosphere.

b)

Population to Organism to Ecosystem to Community to Biosphere to Biome.

c)

Biosphere to Biome to Organism to Ecosystem to Population to Community.

8.

Classify which images are biotic factors. The following is amoeba, grass, mushrooms, sand, and water.

a)
b)
c)
d)
e)
9.

Classify which images are abiotic factors. The following is E.coli bacteria, sun, humidity, sand, and water.

a)
b)
c)
d)
e)
10.

A coastal biologist is studying how flooding affects the organisms that live in the area. What level of environmental organization is he studying?

a)

Ecosystem

b)

Community

c)

Population

d)

Organism

11.

A girl is training her beagle puppy. What level of environmental organization is she working with?

a)

Ecosystem

b)

Community

c)

Population

d)

Organism

12.

A vegetable gardener is studying how worms affect his tomato plants. What level of environmental organization is he studying?

a)

Ecosystem

b)

Community

c)

Population

d)

Organism

13.

A dog breeder selects German Shepherds with the best traits to produce offspring. What level of environmental organization is he working with?

a)

Ecosystem

b)

Community

c)

Population

d)

Organism

14.

What is Predation?

a)

A biological interaction where one organism, the predator, kills and eats another organism, its prey.

b)

It's the ecological interaction between two or more species where each species has a net benefit.

c)

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

d)

The practice of living as a parasite in or on another organism. The parasite benefits from one another.

15.

Competition is an interaction between organisms or species in which both require a resource that is in limited supply (such as food, water, or territory ).


Competition lowers the fitness of both organisms involved, since the presence of one of the organisms always reduces the amount of the resource available to the other.

a)

True

b)

False

16.

What is Mutualism?

a)

A biological interaction where one organism, the predator, kills and eats another organism, its prey.

b)

It's the ecological interaction between two or more species where each species has a net benefit.

c)

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

d)

The practice of living as a parasite in or on another organism. The parasite benefits from one another.

17.

What is Commensalism?

a)

A biological interaction where one organism, the predator, kills and eats another organism, its prey.

b)

It's the ecological interaction between two or more species where each species has a net benefit.

c)

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

d)

The practice of living as a parasite in or on another organism. The parasite benefits from one another.

18.

What is Parasitism?

a)

A biological interaction where one organism, the predator, kills and eats another organism, its prey.

b)

It's the ecological interaction between two or more species where each species has a net benefit.

c)

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

d)

The practice of living as a parasite in or on another organism. The parasite benefits from one another.

19.

What is a Food Chain?

a)

The natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

b)

A term part of biology which is the linear pathway which shows the flow of energy from one organism to another organism.

20.

What is a Food Web?

a)

The natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

b)

A term part of biology which is the linear pathway which shows the flow of energy from one organism to another organism.

21.

Producer to Primary Consumer to Secondary Consumer to Tertiary Consumer to Quaternary Consumer to Decomposer.

a)

True

b)

False

22.

Energy Pyramids show how _________ __________ through a food chain and how much __________ is available at each level.

a)

energy transfers, energy

b)

heat transfers, energy

c)

animals are being eaten, competition

23.

As you go up each level on the pyramid, only _______ of the energy is passed on from one level to the next.


________ of the energy at each level is used for body processes, such as movement, digestion, and growth, and much of it is given off as _______.


To calculate: Notice that each time you move up a level, you can ________ a zero.

a)

10%, 90%, heat, add

b)

90%, 10%, heat, subtract

c)

10%, 90%, heat, subtract

d)

10%, 90%, cold, subtract

24.

Biomass is the total mass of organisms in a given area (or how much "living stuff" is there.)


Each trophic level must have more organisms than the level above it so that there is enough food/energy available to sustain the population.


Because so much energy is lost at each level, a food chain/energy pyramid cannot have unlimited links/levels because too little energy would make it to the top level predator. 90% is the total amount of energy lost at the Tertiary Level.

a)

True

b)

False

25.

How much energy is stored by an organism?

a)

30%

b)

50%

c)

90%

d)

10%

26.

Why/How does the energy decrease from trophic level to trophic level?

a)

The energy is lost as metabolic heat since the organisms from a trophic level are consumed by another organism from the next trophic level.

b)

The energy is gained as metabolic heat since the organisms from a trophic level are consumed by another organism from the next trophic level.