Ecosystem Vocab
Relationships
Energy Transfer
Nutrient Cycles
Misc.
100

An area and all of the living and nonliving things that inhabit that area is known as this.

What is an ecosystem?

100

The ecological relationship shown here:

What is competition?

100

These types of organisms are at the bottom of the energy pyramid.

What are producers?

OR

What are autotrophs?

100

How do animals get the nitrogen they need to build DNA and proteins?

What is feeding?

OR

What is eating? What is through the food chain?

100

Burmese Pythons were brought to the Everglades as exotic pets. They are now apex predators with no natural enemies, causing severe ecological damage.

What are invasive species?

200

These organisms recycle matter in ecosystems.

What are decomposers?

200

Type of relationship shown.

What is prey/predator?

200

The secondary consumer in this food chain.

What is the chameleon?

200

This process fixes carbon dioxide gas into a form that can be used by living things.

What is photosynthesis?

200

The removal beavers from ecosystems causes drastic, chaotic changes to the ecosystem. Beavers are this type of species.

What is keystone species?

300

Climate, type of terrain, and amount of water are all this type of nonliving factor in an ecosystem.

What are abiotic factors?

300

Symbiotic relationship where one organism lives on or inside another organism and causes it harm.

What is parasitism?

300

In the food web below, these are the direct food sources for the snake.


What are the shrew and the frog?

300

These unicellular organisms live in the soil and fix nitrogen into a form that can be used by plants.

What are bacteria?

300
Rainforests have a high amount of this because they have a large amount of different species.

What is biodiversity?

400

A herd of cows, flock of birds, or school of fish, are all examples of this level in an ecosystem.

What is a population?

400

The red-billed oxpeckers feed from lesions full of ticks or other parasites on a rhino’s hide and may warn rhinos of nearby poachers.

What is mutualism?

400

This is what happens to most of the energy that is "lost" to ecosystems.

What is it is lost as heat?

OR

What is it is used in metabolism?

400

This human activity releases excess carbon dioxide into the atmosphere.

What is combustion? OR

What is burning fossil fuels?

400

Due to biomagnification, this organism has the highest levels of mercury.

What is the killer whale?

500

All of the living things in a given area.

What is a community?

500

Remora fish use a specialized suction organ to hitch rides on sharks, saving energy while eating food scraps from the host. The shark is unaffected.

What is commensalism?

500

The amount of energy available to producers if there are 52 kJ available to secondary consumers.

What is 5,200 kJ of energy?

500

This happens when excess nitrogen from fertilizer enters aquatic ecosystems.

What is eutrophication?

OR

What are algal blooms?

500

This natural process releases carbon dioxide gas back into the atmosphere. Hint: It is the "opposite" of photosynthesis.

What is cellular respiration?