Show:
Living Things
Non-living Things
Terms
Chains and Webs
Ecology
100
These factors in ecosystems can be living now, or could have been living at one time.
What is a biotic factor.
100
These factors in ecosystems are not alive and never have been.
What is an abiotic factor.
100

What are nutrient cycles called?

Biogeochemical cycles.

100
This is used to show only one possible feeding relationship in an ecosystem.
What is a food chain.
100

A process in which nutrient levels in aquatic ecosystems increase, leading to an increase in the populations of primary producers.

What is the eutrophication?

200
This is an example of a biotic factor in a forest ecosystem. (Give one example)
What is...(numerous possibilities)?
200
This is an example of an abiotic factor in an ecosystem.
What is ....(numerous possibilities)?
200

All of the individuals of a species that live in the same place, at the same time, and can successfully reproduce.

What is a population?

200

A category of organisms that is defined by how the organisms gain their energy.

What is a trophic level?

200

The current probable carrying capacity of Earth.

What is 11-12 billion people?

300
This biotic factor is considered the 'base' of every food chain because it can create its own energy.
What is a plant?
300

This abiotic factor provides a home for numerous species and is the main component of one of the four cycles.

What is water?

300

The size of a population that can be supported indefinitely by the available resources of an ecosystem.

Carrying Capacity

300

This type of organism is the base of any food web or chain. If this was removed, all other organisms would collapse.

What is a producer?

300

An interaction between 2 species that live together in close association.

What is symbiosis?

400
These biotic factors are sometimes classified as primary, secondary, or tertiary when placed in a food web.
What is a consumer?
400
These two abiotic factors determine the types of plants that can survive in a particular environment.
What are soil and light?
400

A process in which materials, especially toxins, are ingested by an organism at a rate greater than they are eliminated.

Bioaccumulation

400

Arrows are used in a food chain to represent the movement of this. (think 10%)

What is energy?

400

"I speak for the trees!" is this fictional, furry, orange creature's famous catchphrase.

Who is The Lorax?

500
This term describes any environment and all the living things that are supported by it.
What is an ecosystem?
500
This is the study of how organisms interact with both the living and non-living parts of their environment.
What is ecology?
500
This essential nutrient must be changed (fixed) before plants and animals can use it.
What is Nitrogen?
500

These organisms play an important role in any food chain or web by breaking down dead plant and animal matter into simpler compounds. One example is a mushroom.

What are decomposers?

500

Grass produces 1254 energy units. If a frog eats a grasshopper, which eats the grass, how much of the original 1254 energy units would be transferred to the frog?

What is 12.54 Energy Units?