Podcast
Questions and Answers
What is the primary source of energy for autotrophs?
What is the primary source of energy for autotrophs?
- Inorganic nutrients
- Preformed organic matter
- An energy source, such as sunlight (correct)
- Organic nutrients
What is the term for the process of breaking down dead organic matter?
What is the term for the process of breaking down dead organic matter?
- Detritivory
- Scavenging
- Herbivory
- Decomposition (correct)
What type of organism feeds on the dead remains of animals and plants?
What type of organism feeds on the dead remains of animals and plants?
- Scavenger (correct)
- Carnivore
- Herbivore
- Detritivore
What is the term for the community of interacting organisms and their physical environment?
What is the term for the community of interacting organisms and their physical environment?
What type of organism is reliant on a preformed source of organic nutrients?
What type of organism is reliant on a preformed source of organic nutrients?
What is the term for the visual representation of energy flow in an ecosystem?
What is the term for the visual representation of energy flow in an ecosystem?
What percentage of energy stored at each trophic level is available to the next level?
What percentage of energy stored at each trophic level is available to the next level?
What is the primary factor that determines the number of trophic levels in a food chain?
What is the primary factor that determines the number of trophic levels in a food chain?
What is the term for the percentage of energy transferred from one trophic level to the next?
What is the term for the percentage of energy transferred from one trophic level to the next?
What is the primary driver of biogeochemical cycles?
What is the primary driver of biogeochemical cycles?
What is the term for the proportion of energy assimilated by an organism that becomes incorporated into new biomass?
What is the term for the proportion of energy assimilated by an organism that becomes incorporated into new biomass?
What is the term for the activities performed by living organisms?
What is the term for the activities performed by living organisms?
What is the term for species whose habitat requirements are so large that protecting them would protect many other species existing in the same habitat?
What is the term for species whose habitat requirements are so large that protecting them would protect many other species existing in the same habitat?
Which of the following is an example of an ecosystem engineer?
Which of the following is an example of an ecosystem engineer?
What is the term for a graphic representation of the number of organisms, biomass, or relative energy content of various trophic levels in an ecosystem?
What is the term for a graphic representation of the number of organisms, biomass, or relative energy content of various trophic levels in an ecosystem?
What is the term for a single, large, or instantly recognizable species that can be used to promote conservation efforts?
What is the term for a single, large, or instantly recognizable species that can be used to promote conservation efforts?
Which of the following is an example of an indicator species?
Which of the following is an example of an indicator species?
What is the term for the effect of ecosystem engineers on their environment?
What is the term for the effect of ecosystem engineers on their environment?
What is the result of erosion on phosphates?
What is the result of erosion on phosphates?
What is the primary source of sulfur dioxide in the environment?
What is the primary source of sulfur dioxide in the environment?
What is the ultimate driver of the flow of energy through ecosystems?
What is the ultimate driver of the flow of energy through ecosystems?
How do human activities affect the sulfur cycle?
How do human activities affect the sulfur cycle?
What is the key to sustaining life on Earth?
What is the key to sustaining life on Earth?
What is the process by which nitrogen molecules combine with oxygen to form nitrogen oxides?
What is the process by which nitrogen molecules combine with oxygen to form nitrogen oxides?
What is the consequence of adding nitrous oxide to the atmosphere through farming practices?
What is the consequence of adding nitrous oxide to the atmosphere through farming practices?
What is the limiting factor for plant growth in the phosphorous cycle?
What is the limiting factor for plant growth in the phosphorous cycle?
What is the effect of clearing forests on the nitrogen cycle?
What is the effect of clearing forests on the nitrogen cycle?
What is the process by which soil bacteria convert ammonia and ammonium ions to nitrate ions?
What is the process by which soil bacteria convert ammonia and ammonium ions to nitrate ions?
What is the consequence of adding excess phosphates to aquatic systems?
What is the consequence of adding excess phosphates to aquatic systems?
