Water Cycle
This process and transpiration are the main ways water returns to the atmosphere.
What is evaporation?
Animals add carbon dioxide to the atmosphere through this process.
What is cell respiration?
This term describes the position an organism occupies in a food chain, such as primary, secondary, or tertiary.
What are trophic levels?
Pollution from a single, identifiable source, like a sewage pipe, is called this.
What is point source pollution?
This diagram shows how energy moves from producers to consumers in an ecosystem.
What is an energy pyramid?
When water vapor cools and forms droplets in the clouds, this process occurs.
What is condensation?
These are the key products of cellular respiration.
What are carbon dioxide, water and ATP?
These are the base organisms in an energy pyramid that produce food for consumers.
What are producers?
Pollution that comes from many diffuse sources, like runoff from fields, is called this.
What is nonpoint source pollution?
The amount of energy typically passed from one trophic level to the next is about this percentage.
What is 10%?
Water soaks into the ground through this process, which contributes to groundwater.
What is infiltration?
Plants convert CO₂ into glucose during this process.
What is photosynthesis?
This term describes the buildup of toxins in higher trophic levels.
What is biomagnification?
Excess fertilizer can cause this process in ponds and lakes, leading to algal blooms.
What is eutrophication?
Animals that eat both plants and animals are called this.
What are omnivores?
This is water that flows across the Earth's surface and into rivers an lakes.
What is runoff?
Both photosynthesis and cellular respiration involve these chemical compounds as reactants or products.
What are glucose, oxygen, carbon dioxide and water?
This type of consumer feeds on secondary consumers and is often near the top of a food web.
What is a tertiary consumer?
These environmental elements, such as food, water, space, and shelter, control the growth and size of a population in an ecosystem.
What are limiting factors?
This molecule stores energy released from glucose during cellular respiration and is used by cells to perform work.
What is ATP (adenosine triphosphate)?
Plants contribute to the water cycle through this process, releasing water vapor into the air.
What is transpiration?
This process, driven by human activities like burning fossil fuels, adds carbon dioxide to the atmosphere faster than natural processes.
What is combustion?
Animals that occupy more than one trophic level in a food web are called this.
What are omnivores or consumers?
Human activity like burning fossil fuels contributes to this effect, which traps heat in Earth’s atmosphere.
What is the greenhouse effect?
This term describes the maximum number of individuals of a species that an ecosystem can support.
What is carrying capacity?