In a food chain with each feeding relationship the energy transferred from one organism to another will
1: decrease.
2: THREE to FIVE organisms.
3: omnivores
4: a producer and multiple consumers
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decrease.
This phenomenon is known as the 10% law, which states that only 10% of the energy stored in one trophic level is passed on to the next level. The remaining energy is lost as heat or used for the organism's own metabolic needs. Therefore, as we move up a food chain or trophic level, the amount of available energy decreases. This is why there are typically fewer top predators in an ecosystem compared to primary producers, since there is not enough energy available to support a large number of top predators.
To understand the energy transfer in a food chain, we can follow these steps:
1. Identify the organisms in the food chain: A food chain represents the flow of energy from one organism to another in a series of feeding relationships. It typically starts with a producer, such as a plant, and follows with consumers, which can be herbivores (primary consumers), carnivores (secondary consumers), and so on.
2. Determine the energy source: Energy enters a food chain through the producers, which convert sunlight into food energy through photosynthesis.
3. Analyze energy transfer: As organisms consume other organisms in the food chain, energy is transferred from one level to another. Each time an organism consumes another organism, only a portion of the energy is assimilated and transferred to the consumer's growth, reproduction, and metabolism. The rest of the energy is lost as waste, heat, or used for respiration.
4. Observe the energy flow: Energy flows in a unidirectional manner in a food chain, moving from one trophic level (feeding level) to another. The energy is continually transferred and diminished as it moves up the food chain due to energy losses at each level.
5. Note energy loss: The energy transfer from one organism to another is not 100% efficient. On average, only about 10% of energy is transferred from one trophic level to the next. This is known as the 10% rule, which means that approximately 10% of the energy acquired at each level is available for the next level. The rest is used for the organism's own life processes or lost as waste and heat.
In summary, the energy transferred from one organism to another in a food chain gradually decreases as it moves up the trophic levels, with only about 10% being passed on to the next level.