Ecosystems and Food Chains

Biotic -

Living factors in an environment

Abiotic -

All the non-living things in the ecosystem including the sun, water, rocks, and soil

Multiple Choice

Which is an example of an abiotic factor in a pond environment?

• The water

• A frog

• A grasshopper

• A snake

Multiple Choice

Water is a compound that consists of 2 hydrogen atoms and 1 oxygen atom. Up to 60% of an adult human is made up of water. Water is an example of what type of factor?

• Biotic

• Abiotic

Multiple Choice

An angler fish has a fleshy growth on its head that gives off light. This part acts as a lure to help the angler fish catch its prey. An anglerfish is an example of which type of factor?

• Biotic

• Abiotic

Multiple Choice

Biotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Multiple Choice

Abiotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Multiple Choice

Are consumers biotic or abiotic factors?

• biotic

• abiotic

Multiple Choice

Are decomposers biotic or abiotic factors?

• biotic

• abiotic

Multiple Choice

Are producers biotic or abiotic factors?

• biotic

• abiotic

Multiple Choice

Is temperature a biotic or abiotic factor?

• biotic

• abiotic

Multiple Choice

All living things or organisms in an ecosystem are

• None

• biotic factors

• abiotic factors

Multiple Choice

Is a DOG an abiotic or biotic factor?

• BIOTIC

• ABIOTIC

Multiple Choice

Air is a mixture of colorless gases. Air is an example of which type of factor?

• BIOTIC

• ABIOTIC

Multiple Choice

Up to 60% of an adult human is made up of water. Water is an example of what type of factor?

• BIOTIC

• ABIOTIC

Multiple Choice

The Sun is the source of all energy within an ecosystem. Plants depend on light from the sun in order to perform the process of photosynthesis. Sunlight is an example of what type of factor?

• BIOTIC

• ABIOTIC

Multiple Choice

Bees are insects that belong to the group of:

• BIOTIC

• ABIOTIC

Ecosystem -

All the living things that interact in a given area that interact with other living things as well as non-living things in the environment. All the energy on Earth comes from the Sun.

Community -

All the (living things) different populations that live in the same place at the same time. 

Population -

All the members of the same species that live in the same area at the same time. 

Organism -

Any living thing

Producer -

Organism that makes its own food.
Also known as AUTOTROPHS; organisms that make their own food through Photosynthesis

Herbivore -

Consumer that only eats plants. 
Herbivores are considered PRIMARY CONSUMERS because they eat producers.

Carnivore -

Consumer that eats only meat. 

Omnivores -

Consumer that eats plants and animals. 

Decomposer -

Organism that breaks down the wastes or remains of other organisms. 

Multiple Choice

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

Multiple Choice

An organism that uses sunlight to create its own food is known as a:

• Producer
• Heterotroph
• Consumer
• Decomposer

Multiple Choice

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

Food Web -

Way of showing how food chains are related. Two or more food chains that overlap. 

Multiple Choice

The image provided is an example of a:

• Producer
• Heterotroph
• Consumer
• Decomposer

Food Chain -

Way of showing how energy moves from one organism to another. 

Energy Pyramid -

Way of showing how the energy from food moves through populations of organisms in a community. 10% of the energy is passed from one level to another

Predator eats Prey

​Predator - Prey

Multiple Choice

What does a food chain represent?

• How all living organisms within a habitat are connected.
• All of the things that a particular animal eats.
• How plants create their own food.
• A single path of energy transfer within a habitat.

Multiple Choice

The image provided is an example of a(n):

• Autotroph
• Carnivore
• Herbivore
• Decomposer

Multiple Choice

The image provided is an example of a(n):

• Carnivore
• Herbivore
• Producer
• Autotroph

Multiple Choice

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Multiple Choice

Passing of energy, in the form of food, from one organism to another

• food cycle

• food network

• food chain

• food system

Multiple Choice

Consumer that eats both plants and animals

• omnivore

• fungivore

• carnivore

• herbivore

Multiple Choice

A consumer that hunts is called:

• a producer.
• an omnivore.
• a predator.
• a herbivore.

Multiple Choice

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Multiple Choice

The largest group of organisms found in a food web would be:

• Primary Consumers
• Producers
• Decomposers
• Tertiary Consumers

Multiple Choice

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

Multiple Choice

Why might an organism have more than one arrow coming from them in a food web?

• More than one organism may eat them. 
• They may eat more than one other organism. 
• This organism gets its energy from multiple sources. 
• They have no resources available to them.

Multiple Choice

The mouse in this food web would be considered a:

• Primary Consumer
• Producer
• Tertiary Consumer
• Secondary Consumer

Multiple Choice

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

Multiple Choice

The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

Multiple Choice

The fox in this food web would be considered a __________ when he eats the shrew.

• Tertiary Consumer
• Producer
• Secondary Consumer
• Primary Consumer

Multiple Choice

TRUE  or FALSE: Food webs are several food chains that are linked together.

• TRUE
• FALSE

Multiple Choice

What does the arrow mean in a food chain or food web?

• An organism comes next
• Gets eaten by
• Go left
• Go right

Multiple Choice

Identify the producer in the image above.

• Grass

• Grasshopper

• Frog

• Snake

• Eagle

Multiple Choice

Which of the following organisms is a producer?

• grass

• rabbit

• fox

• snake

Multiple Choice

Which of the following organisms is a primary consumer?

• grass

• rabbit

• fox

• snake

Multiple Choice

Which of the following organisms uses photosynthesis to get the energy it needs to survive?

• grass

• rabbit

• fox

• snake

Multiple Choice

Which of the following organisms in competition with the weasel for their food source?

• grass

• rabbit

• fox

• snake

Multiple Choice

Which of the following organisms is a herbivore?

• grass

• rabbit

• fox

• snake

Multiple Choice

What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

• The rabbit population would increase

• The rabbit population would decrease

• The rabbit population would neither increase nor decrease

Multiple Choice

What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.
• The number of primary consumers would increase.
• The number of plants would increase.
• The number of secondary consumers would increase.

Multiple Choice

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

Multiple Choice

_______ are organisms that eat plants.

• herbivore
• carnivore
• omnivore

Multiple Choice

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Multiple Choice

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

Multiple Choice

What does a food chain represent?

• How all living organisms within a habitat are connected.
• All of the things that a particular animal eats.
• How plants create their own food.
• A single path of energy transfer within a habitat.

Multiple Choice

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Multiple Choice

Why might an organism have more than one arrow coming from them in a food web?

• More than one organism may eat them. 
• They may eat more than one other organism. 
• This organism gets its energy from multiple sources. 
• They have no resources available to them.

Multiple Choice

Which of these is a possible Food Chain for this Ecosystem?

• grass → fly → frog

• frog → fly → grass

• grass ← fly ← frog

• fly → frog → snake

Multiple Choice

Which of these organisms would receive energy from the snake?

• plant

• rabbit

• mouse

• hawk

Multiple Choice

Which best describes what a Food Chain shows you?

• A food chain shows the energy flow through an ecosystem

• A food chain shows food flowing through an ecosystem

• A food chain shows consumers fighting other consumers

• A food chain shows who eats who

Multiple Choice

What does a Food Chain always begin with?

• Producers

• Primary Consumers

• Heterotrophs

• Grass

Multiple Select

Which of the following is not a primary consumer in this Food Web?

• Owl

• Grasshopper

• Mouse

• Bird

• Rabbit

Multiple Select

Which three animals are Secondary Consumers in this Food Web?

• Owl

• Fox

• Mouse

• Bird

• Rabbit

Multiple Choice

Primary Consumers can be ...

• Herbivores

• herbivores and omnivores

• carnivores

• producers

Multiple Choice

The primary consumers belongs to

• 1st Trophic Level

• 2nd Trophic Level

• 3rd Trophic Level

Multiple Choice

A strawberry plant is

• Producer

• Primary Consumer

• 3rd Trophic Level

Multiple Choice

Which organism is the apex predator?

• hawk
• lizard
• snake
• grass

Multiple Choice

Which animal is not the apex predator but, a predator to a mouse?

• hawk
• rabbit
• snake
• grass

Multiple Choice

Why is a shark a carnivore ...

• because it eats seaweed
• because it eats dead animals
• because it eats sand 
• because it eats other animals

Multiple Choice

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Multiple Choice

Which animals eat primary consumers (they can be carnivores and omnivores)

• Tertiary Consumers
• Secondary Consumers
• Quaternary Consumers 
• Top Predators