Food web vs Food chain
Energy Pyramid
Producers vs consumers
Biodiversity
Keystone species
100

Which energy model typically has more organisms, a food chain or a food web? 

Food web

100

Which trophic level is found at the base of the energy pyramid? 

Producers

100
How do producers get energy

Most use a process called photosynthesis to create food 

100

Do healthy ecosystems typically have high or low levels of biodiversity

High levels

100

Do keystone species have to be an apex predator? 

No, they can be a herbivore or a producer

200

Which energy model shows a single pathway of energy in the ecosystem? 

Food chain

200

In an energy pyramid, what does each trophic level feed on? 

The trophic levels below it

200

What is another word for consumer? 

Heterotroph

200

What biome is usually considered the most biodiverse ecosystem on Earth? 

Tropical rainforests 

200

How do beavers act as a keystone species

They transform their ecosystems, building dams creates habitat and opportunities for other organisms

300

All food chains should begin with what kind of organism? 

Producer, plant or autotroph

300

A herbivore like deer belong to which trophic level? 

Primary consumers

300

What is another word for producer? 

Autotroph 

300

What is biodiversity? 

A measurement of the amount and variety of living things in a ecosystem 

300

What is a keystone species? 

A species that plays a vital role in its ecosystem, if it is removed, the food web/ecosystem may collapse or experience extreme negative effects. 

400

Which energy model shows all of the predator and prey interactions that take place in a ecosystem? 

Food web 

400

Which trophic level would an apex predator like a shark or eagle belong to? 

Tertiary consumers

400

How do decomposers get energy? 

They break down dead or decaying organisms for food/energy. 

400

What is a species? 

A group of organisms that can breed with one another and produce fertile offspring

400

What will likely happen to an ecosystem or its food web if a keystone species is removed or goes extinct? 

The food web/ecosystem may collapse, biodiversity will drastically decrease

500

In a food web, in what direction does the arrow point?

From the prey, to the predator. The arrow points in the direction of the energy transfer

500

When moving up the energy pyramid, energy is lost at each level in the from of heat. At the tertiary consumer level, how much available energy is left? 

0.1%

500

What do the following consumers eat? Herbivore, Carnivore, Omnivore

Herbivore: Only plants 

Carnivore: Only Animals 

Omnivore: Both plants and animals

500

What are two ways that humans limit or hurt biodiversity on planet Earth

Over-hunting, deforestation, pollution, habitat destruction, littering....

500

What is 1 reason that wolves act as a keystone species in Yellowstone national park

They keep herbivore populations such as elk/deer in control. 

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