Ecosystems
Biotic and Abiotic Factors
Biotic and Abiotic Factors
What do we call all the living and non-living things interacting in a specific area?
An Ecosystem
Define succession
The maximum number of organisms an environment can support
What does the biomass pyramid show?
The amount of living matter at each level of the food chain
This term describes a species at risk of extinction.
Endangered species
What term describes living components like plants and animals?
Biotic
This type of succession happens in an area with no previous life, like after a volcanic eruption
Primary Succession
What happens if a population goes past its carrying capacity?
The population will decline to return to a proper state
What level of the biomass pyramid have the most energy and organisms?
Producers
This type of species is not native and can harm the ecosystem it enters.
Invasive species
What are three examples of abiotic factors?
Water, Sunlight, Salinity, temperature, soil, minerals
This type of succession happens after a disturbance, like a forest fire.
Name a factor that can impact carrying capactiy
What are producers, consumers and decomposers?
Producers create their own food
Consumers can't make their own food, have to eat other organisms
Decomposers, consume the remains of dead organisms
endangered
What is biodiversity?
Biodiversity is the variety of living organisms in an ecosystem
What is an event that can cause PRIMARY succession?
Name at least one way that seasonal surplus can be decreased
hunting, disease, predators, weather, starvation
How much energy is passed from one trophic level to another
10%
Are emerald ash borers invasive or endangered species
Invasive
Predict what might happen to a forest ecosystem if rainfall drastically decreases for several years.
Plants may die, leading to less food and shelter for animals, disrupting the ecosystem balance
What is the difference between primary and secondary succession?
Primary succession occurs when new land is made
Secondary succession occurs after a natural disaster destroys an old ecosystem and a new one grows.
What human activities impact the carrying capacity of an ecosystem?
Pollution, deforestation, urban development
Explain why top predators have the least biomass in an ecosystem.
ecause energy is lost at each level, so fewer organisms can be supported at the top
How do invasive species can affect biodiversity?
They outcompete native species for resources