2) Energy, Food Chains, Food Webs

What do producers provide?

energy for other organisms in an ecosystem

What provides energy for organisms in an ecosystem?

producers

Where do producers get their energy from?

non living resources, mainly sunlight

Who gets their energy from non living resources, mainly sunlight?

producers

Why are producers also called autotrophs?

because they make their own food

Because they make their own food, producers are also called what?

autotrophs

What is photosynthesis?

sunlight used by most producers as an energy source

sunlight used by most producers as an energy source is called what?

photosynthesis

What is chemosynthesis?

chemicals used by prokaryote producers as an energy source

What are chemicals used by prokaryote producers as an energy source?

chemosynthesis

What are organisms that get their energy by eating other living or once-living resources?

consumers

What are consumers?

organisms that get their energy by eating other living or once-living resources

Why are consumers also called heterotrophs?

because they feed off of different things

Because they feed off of different things, consumers are also called what?

heterotrophs

Herbivores only eat

plants

Carnivores only eat

animals

Omnivores eat

both plants and animals

Detrivores eat

dead organic matter

What are decomposers?

detritivores that break down organic matter into simpler compounds

What are detritivores that break down organic matter into simpler compounds

decomposers

What are specialists?

consumers that primarily eat one specific organism or a very small number of organisms

What are consumers that primarily eat one specific organism or a very small number of organisms?

specialists

What are generalists?

consumers that have a varying diet

What are consumers that have a varying diet?

generalists

What do food chains and food webs model?

the flow of energy in an ecosystem

What models the flow of energy in an ecosystem?

food chains and food webs

What is a food chain?

a model that shows a sequence of feeding relationships

What is a model that shows a sequence of feeding relationships?

a food chain

What links species by their feeding relationships?

a food chain

A food chain links what?

species by their feeding relationships

What follows the connection between one producer and a single chain of consumers within an ecosystem?

a food chain

A food chain follows the connection between what?

one producer and a single chain of consumers within an ecosystem

What are trophic levels?

the nourishment levels in a food chain

What are the nourishment levels in a food chain?

trophic levels

What are primary consumers?

herbivores that eat producers

What are herbivores that eat producers?

primary consumers

What are secondary consumers?

carnivores that eat herbivores

What are carnivores that eat herbivores?

secondary consumers

What are tertiary consumers?

carnivores that eat secondary consumers

What are carnivores that eat secondary consumers?

tertiary consumers

What may be listed at different trophic levels in different food chains?

omnivores

Omnivores may be listed at

different trophic levels in different food chains

What does a food web show?

a complex network of feeding relationships

What shows a complex network of feeding relationships?

a food web

In an ecosystem, an organism may have

multiple feeding relationships

An organisms may have multiple feeding relationships in a what?

an exosystem

A food web emphasizes what?

complicated feeding relationships and energy flow in an ecosystem

What emphasizes complicated feeding relationships and energy flow in an ecosystem?

a food web