Energy Pyramids
Ecosystem Vocabulary
Symbiosis
Food Chains & Webs
Succession
100

The bottom level of an energy pyramid contains what types of organisms?

What are "producers?"

100

Organisms that make their own food are called...

What are "producers?"

100

In this symbiotic relationship, one organism benefits while the other is harmed.

What is parasitism? (PARASITE and HOST)

100

Food chains always begin with a __________.

What is a "producer?"

100

What are the two types of "succession?"

What are "primary" and "secondary?"

200

What is the difference between "primary" consumers and "secondary" consumers?

Primary consumers eat just the producers, and secondary consumers eat other animals.

200

What is the difference between a "population" and a "community?"

A population is all of the same species, and a community includes many different species.

200

In this symbiotic relationship, resources like water, food or mates are limited, therefore fighting could occur between species.

What is "competition?"

200

Food chains and webs show pictures of the living things, joined by _________ showing the path of energy.

What are "arrows?"

200

This type of "succession" occurs when an ecosystem experiences a major change where only rocks are present; no soil at all.

What is "primary succession?"

300
What happens to the available energy as you move toward the top of the energy pyramid?

What is "it decreases?"

300

This refers to the amount of available resources that may only allow a certain number of organisms to successfully live in an area.

What are "limiting factors?"

300

This symbiotic relationship occurs when one organism seeks out or hunts another, then kills and eats it.

What is "predation?"

300

Organisms like fungi and bacteria are shown in food webs consuming (getting energy from) a wide variety of other organisms of all shapes and sizes. 

What are "decomposers?"

300

After floods, tornados or even fires, although there is damage, soil typically remains. What type of "succession" would occur here?

What is "secondary" succession?

400

If there were 20,000 energy units available at the "producer" level(bottom), how much energy would then be available to "primary" consumers?

What is 2000?

400

This is the process where nature heals a damaged ecosystem, and new life slowly begins to inhabit the area.

What is "succession?"

400

Living things interact with other living things, plus they interact with non-living things also. What do we call these "living" and "non-living" parts of the ecosystem?

What are "biotic" and "abiotic" factors?

400

This diagram shows multiple paths of energy traveling throughout an ecosystem. 

What is a "food web?"

400
True or False: Primary succession happens more rapidly, and secondary succession happens more slowly.
What is "False?"
500

The top level of an energy pyramid includes ____________ consumers(top predators).

What are "tertiary" consumers?

500

When the process of succession is happening, these are the first species to populate the area.

What are "pioneer" species?
500
This symbiotic relationship occurs when one organism benefits while the other is unaffected - either positively or negatively.

What is "commensalism?"

500

What is the difference between a food web and a food chain?




What is "food chains show only a single path of energy, and food webs show several overlapping food chains in an ecosystem?"

500

Events like volcanic eruptions cause significant changes to ecosystems. What type of "succession" occurs after such an event?

What is "primary" succession?