Ecosystem Basics
Matter Cycles
Energy Flow
Populations and Carrying Capcity
Biodiversity and Succession
100

What is an ecosystem?

What is the term for a system that includes living and nonliving things interacting together?

100

Which cycle includes evaporation, condensation, and precipitation?


What is the water cycle?

100

What is the original source of energy for most ecosystems?


What is the Sun?


100

What is the maximum population size an environment can support called?


What is carrying capacity?

100

What term describes the variety of life within an ecosystem?


What is biodiversity?

200

What are living things within an ecosystem called?


What are biotic factors?

200

What process in the carbon cycle removes carbon dioxide from the atmosphere?


What is photosynthesis?

200

What type of organism can produce its own energy through photosynthesis?


What is a producer (autotroph)?

200

What do we call any resource or environmental condition that restricts population growth?


What are limiting factors?

200

How does biodiversity affect ecosystem resilience?


What is ecosystems recover more easily with higher biodiversity?

300

What are nonliving things within an ecosystem called?


What are abiotic factors?

300

What type of organisms play a major role in nitrogen fixation?


What are bacteria?

300

What do we call an organism that must consume other organisms for energy?


What is a consumer (heterotroph)?

300

Give one example of a limiting factor.


What are examples such as food, water, habitat, disease, or predators?

300

What is a keystone species?


What is an organism with a disproportionately large effect on an ecosystem?

400

A group of two or more species interacting in the same area is called this.


What is a community?

400

Which matter cycle is important for DNA and cell membranes?


What is the phosphorus cycle?

400

What graphical organizer shows the movement of energy through an ecosystem?


What is an energy pyramid?

400

If a population exceeds carrying capacity, what will most likely happen?


What is the population will decrease?

400

What type of succession starts from bare rock with no soil?


What is primary succession?

500

Name two abiotic factors that could affect an ecosystem.

What are examples like water, sunlight, temperature, soil, or oxygen?

500

Name the four major phases of the carbon cycle.


What are photosynthesis, respiration, decomposition, and combustion?

500

Approximately what percent of energy remains when transferred to the next trophic level?


What is 10%?

500

How do limiting factors affect carrying capacity?


What is they determine how many organisms an ecosystem can support?

500

What type of succession occurs after a disturbance when soil still remains?


What is secondary succession?