Podcast
Questions and Answers
In an ecosystem, if the producer level has 5,000 kcal of energy, approximately how much energy is available to the tertiary consumers, assuming a typical energy transfer efficiency?
In an ecosystem, if the producer level has 5,000 kcal of energy, approximately how much energy is available to the tertiary consumers, assuming a typical energy transfer efficiency?
- 5,000 kcal
- 50 kcal
- 500 kcal
- 5 kcal (correct)
Which trophic level is responsible for recycling nutrients from dead organisms back into the ecosystem, making them available to producers?
Which trophic level is responsible for recycling nutrients from dead organisms back into the ecosystem, making them available to producers?
- Detritivores (correct)
- Herbivores
- Carnivores
- Producers
If a new pesticide drastically reduces the population of herbivores in an ecosystem, what is the most likely short-term effect on the carnivore population?
If a new pesticide drastically reduces the population of herbivores in an ecosystem, what is the most likely short-term effect on the carnivore population?
- An increase in the carnivore population due to less competition.
- A shift in the carnivore diet to include more producers.
- No change in the carnivore population as they eat producers.
- A decrease in the carnivore population due to reduced food availability. (correct)
In a food chain consisting of grass, grasshoppers, frogs, and snakes, which organism represents the secondary consumer?
In a food chain consisting of grass, grasshoppers, frogs, and snakes, which organism represents the secondary consumer?
An organism that consumes both plants and animals is classified as a(n):
An organism that consumes both plants and animals is classified as a(n):
Flashcards
Herbivore
Herbivore
An organism that consumes only plants.
Carnivore
Carnivore
An organism that consumes only meat.
Omnivore
Omnivore
An organism that consumes both plants and meat.
Detritivore
Detritivore
Signup and view all the flashcards
10% Rule in Ecology
10% Rule in Ecology
Signup and view all the flashcards
Study Notes
- Energy in the form of food transfers from producers to herbivores, then to carnivores.
- Approximately 10% of the energy stored at each trophic level is lost during metabolic reactions.
- Starting with 1,000g of plant matter, a food chain can support 100g of herbivores (primary consumers).
- The same food chain can support 10g of secondary consumers (carnivores).
- The same food chain can support only 1g of tertiary consumers (carnivores).
Types of Consumers
- Herbivores consume only plants.
- Carnivores consume only meat.
- Omnivores consume both plants and meat.
- Detritivores consume decaying dead bodies.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
