Energy Flow
What is the source of all energy in most ecosystems?
The Sun
This cycle involves the movement of water between the atmosphere, land, and oceans.
The Water Cycle
What is the term for a group of individuals of the same species living in the same area?
Population.
Large geographical area that contains similar ecosystems.
Biome
The ability to maintain an ecological balance.
Sustainability.
These organisms make their own food using sunlight.
Producers or autotrophs
Plants absorb this gas from the atmosphere during photosynthesis.
Carbon dioxide (CO₂)
What do we call the place where an organism lives and its role in the ecosystem?
Niche.
The number of different types of organisms in an area.
Biodiversity
How do living things convert the Sun's energy into chemical energy?
Photosynthesis.
This term describes organisms that consume producers directly.
Primary consumers or herbivores.
This element is essential for making proteins and DNA, and is recycled through the ecosystem.
Nitrogen.
What term describes a complex, self-regulating system in which living and non-living components interact in a specific area?
Ecosystem.
Process of water vapour turning into liquid as it cools to form clouds.
Condensation.
Consumers that feeds on the dead remains of another organism.
Scavengers.
Organisms that break down dead matter and recycle nutrients back into the ecosystem.
Decomposers.
What process is responsible for water returning to the atmosphere from plants?
Transpiration.
Which sphere consists of gases that surround the Earth?
Atmosphere.
All organisms that depend on other organisms for food.
Consumers.
This is used to describe the position of an organism along a food chain.
Trophic level.
What is the equation for photosynthesis?
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (carbon dioxide + water → glucose + oxygen)
How do animals get nitrogen for their bodies?
By consuming plants or other animals.
The earth's solid outer layer that includes all the rocks and minerals on Earth’s surface?
Lithosphere.
The process by which sugar and oxygen are converted into energy, water, and carbon dioxide.
Cellular respiration.
The arrows in a food chain or web flow in this direction.
Direction of energy flow.