B18 Humans And The Ecosystem Flashcards
Producer?
An organism that makes its own food, usually by photosynthesis
Food chain?
Representation of the feeding relationships within a community
Consumer?
Organism that eats other organisms for food
Herbivore?
An organism that only eats producers (plants/algae)
Predator?
An organism that kills and eats other organisms
Prey organism?
An organism that is killed and eaten by another organism
Apex predator?
A carnivore with no predators
Carbon cycle?
The process that returns carbon from organisms to the atmosphere as carbon dioxide, which can then be used by plants 🍃
Water cycle?
The process that provides fresh water for plants and animals on land before draining into seas and rivers
Biodiversity?
The variety of all the different species of organisms on Earth, or within an ecosystem
Advantage of high biodiversity?
Ensures stability of ecosystems by reducing the dependence of one species on another
How r humans trying to maintain biodiversity?
Breeding programmes
Protection of rare habitats
Reintroduction of hedgerows
Reduction of deforestation and carbon dioxide emissions
Recycling resources
How r humans 🚶 reducing the land available for other organisms?
Building 🏠
Quarrying
Farming 🚜
Dumping waste
Y r more resources being used, and more waste produced by humans 🚶?
Rapid growth in human population and increase in the standard of living
What are the negatives of the destruction of peat bogs?
Reduces amount of available habitat, causing decreases in biodiversity
Burning or decay of peat releases CO2 into the atmosphere
