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What is the term where a variety of organisms live together in an environment along with other non-living components, like water and dirt?
ECOSYSTEM
What is the difference between a food chain and a food web?
A food chain is a simple diagram that shows one path of energy flow.
A food web shows many interconnected associations of feeding relationships within an ecosystem.
Define the difference between density-dependent and density-independent factors.
Density-Dependent: Effects increase with population size
Density Independent: The population is affected regardless of size
PHOTOSYNTHESIS
What is carrying capacity, and how is it limited?
The maximum population size an environment can sustain.
Limited by things like food, predation, disease, and competition.
Define the 10% rule
**hint: some of it gets lost
only about 10% of energy is passed to the next trophic level
BECAUSE MOST IS LOST AS HEAT
**limits the number of trophic levels
Describe a food chain.
A sequence of organisms showing how energy and nutrients move from producers to consumers.
What is the basic energy flow in an ecosystem?
Producers (Plants)
Primary Consumers (herbivores)
Second Consumers (Consumers)
Tertiary Consumers (Top Predators)
Decompers recycle nutrients
What are the steps of the Nitrogen Cycle?
**hint: Order of words: NNAAD
Nitrogen Fixation
Nitrification
Assimilation
Ammonification
Dentrification
- vital for building proteins and nucleic acids
Describe the difference between an autotroph and a heterotroph.
Autotroph - orgranisms who produce their own food
Heterotroph - Organisms that eat other organisms for their food supply.
Niche Partitioning
When species divide resources to reduce competition and allow coexistence.
- like feeding at different times or in different areas.
ur brave for choosing the hardest question... it's actually the easiest
Give an example of human impact on an ecosystem.
stuff like deforestation or anything that includes humans tampering with nature.