5 Questions
What is the process of converting nitrogen gas into nitrogen compounds that plants can absorb and use?
Nitrogen fixation
What is the single essential nutrient that limits productivity in an ecosystem known as?
Limiting nutrient
What is the term for the number of individuals divided by the size of the area?
Population density
What is the pattern of where individuals live within a population referred to as?
Population distribution
What is the process by which bacteria convert nitrates into nitrogen gas called?
Denitrification
Study Notes
Energy Flow in Ecosystem
- An ecosystem is a biological community of interacting organisms and their physical environment.
- A food web consists of all the food chains in a single ecosystem.
- A food chain is a linear network of links in a food web, starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species.
Key Concepts
- Biomass refers to the total quantity or weight of organisms in a given area or volume.
- Trophic level is the position of an organism in the food chain.
- An ecological pyramid is a graphical representation that shows the biomass or bio-productivity.
Organisms in an Ecosystem
- Scavengers are animals that feed on decaying organic matter.
- Decomposers are organisms that break down dead organic material.
- Detritivores are organisms that feed on dead and decomposing organic matter, such as earthworms or fungi.
- Omnivores feed on both animal and vegetable matter.
- Carnivores feed on animals only.
- Herbivores feed on vegetables only.
- Primary producers are organisms that acquire their energy from sunlight and materials from non-living sources.
Test your knowledge of energy flow in ecosystems with this quiz! Challenge yourself with questions about food webs, food chains, biomass, and more. See how well you understand the intricate interactions within biological communities and their physical environments.
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