In a food chain, with each feeding relationship, the energy transferred from one organism to another will
decrease.
increase.
remain constant.
be independent of the level.
The energy transferred from one organism to another in a food chain will decrease.
In a food chain, the energy transferred from one organism to another will decrease.
To understand why, we need to look at the concept of energy flow in a food chain. A food chain represents a linear sequence of organisms, where each organism serves as a source of energy for the next organism in the chain.
The primary source of energy in most food chains is the sun, which is captured by producers (such as plants) through photosynthesis. The producers convert sunlight into chemical energy in the form of organic compounds. When a consumer (such as an herbivore) consumes the producer, it gains some of that energy. The consumer then becomes a source of energy for the next organism in the chain, such as a carnivore. This process continues until we reach a top predator or a decomposer.
However, not all of the energy is transferred from one organism to another. As organisms consume each other, only a fraction of the energy is assimilated and passed on. The rest of the energy is lost as heat due to metabolic processes, used for growth and maintenance, or excreted as waste. This energy loss occurs at each trophic level in the food chain.
Therefore, with each feeding relationship in a food chain, the energy transferred from one organism to another decreases. This decrease in energy transfer is a fundamental principle in ecology known as the 10% rule. It states that only about 10% of the energy available at one trophic level is transferred to the next trophic level.
So, to answer your question, the energy transferred from one organism to another will decrease in a food chain.
In a food chain, the energy transferred from one organism to another will decrease.
As energy moves up the food chain, only a fraction of the energy is transferred from one organism to the next. This is due to inefficiencies in energy transfer and energy loss through processes such as respiration, digestion, and heat production. As a result, each higher trophic level in a food chain receives less energy than the previous one. This is known as the 10% rule, where approximately 10% of the energy is transferred from one trophic level to the next. Therefore, the amount of energy available to each organism decreases as you move up the food chain.
Most food chains normally consist of no more than
zero to one organism.
eight to nine organisms.
three to five organisms.
two to three organisms.
Most food chains normally consist of two to three organisms.
In a food chain, with each feeding relationship, the energy transferred from one organism to another will
decrease.
increase.
remain constant.
be independent of the level.
In a food chain, the energy transferred from one organism to another will decrease.
The black bear is common to North America. Black bears eat many foods, mainly grass, roots, berries, and insects. However, fish and mammals- including those already dead — are also part of their diet. Some tend to wander near campsites and can develop a taste for human food and garbage. Given this information, which term most accurately characterizes black bears?
omnivores
decomposers
producers
carnivores
The term that most accurately characterizes black bears based on the given information is "omnivores." Black bears have a diverse diet that includes both plant material, such as grass, roots, and berries, as well as animal matter, including fish, mammals, and insects. This combination of plant and animal consumption makes them omnivores.
What is the usual composition of a food chain?
a decomposer, a producer, and some consumers
multiple producers and a consumer
a decomposer, some producers, and a consumer
a producer and multiple consumers