Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Ecology |
The study of the interactions of organisms between one another and the physical factors of the environment |
|
|
Ecosystem |
An ecological system formed by the interaction of living organisms and their physical environment |
|
|
Food Chain |
Shows the relationship between living organisms that exist in an ecosystem |
|
|
Food Web |
A system of interlocking and interdependent food chains that depicts all possible feeding relationships of organisms in an ecosystem |
|
|
Trophic Level |
A stage of a food chain |
|
|
Ecological Pyramid |
A diagram that shows the relationships between producers and consumers at different trophic levels within an ecosystem |
|
|
Pyramid of Numbers |
Shows the population at each trophic level of a food chain |
|
|
Carbon Cycle |
The process by which carbon is transported through the atmosphere and between living organisms |
|
|
Producers |
- Support all other organisms - Use light energy to synthesise sugars and other organic molecules - Used for cellular respiration and building protoplasm |
|
|
Detritivores |
Organisms that feed on non-living materials like organic wastes and dead organisms |
|
|
Decomposers |
Organisms that obtain energy by breaking down dead organisms |
|
|
List the trophic levels. |
- Producers - Primary Consumers - Secondary Consumers - Tertiary Consumers - Detritivores |
|
|
Describe the process of energy transfer in organisms |
- For cellular activities - Allow organisms to grow - Stored energy in material made by growing is called biomass - Energy is released from organic food molecules via respiration - The source of energy is the sun from which producers carry out photosynthesis - Consumers gain energy by eating the producers' biomass - Energy flow is non-cyclic as energy is lost at each trophic level |
|
|
How is energy lost to the environment? |
- Heat during respiration - Uneaten body parts - Undigested materials ingested by consumers - Waste products of consumers |
|
|
Processes of the carbon cycle |
- Photosynthesis - Respiration - Feeding - Decomposition - Fossilisation - Combustion |
