Question

In a food web, each successive trophic level has:
(A) increased total energy
(B) less total energy content
(C) more total energy content
(D) non-estimated energy content

Answer 1

Hint:
In order to answer such questions one must have knowledge regarding trophic levels and also you should know about Lindman's rule of 10% energy transfer.

Complete step by step answer:
Trophic level, a position in an ecosystem's food chain or nutrient cycle. Based on their eating habits, organisms in a chain are divided into various stages. The producers which are known as green plants are found on the first and lowest level. A trophic level is a level or a place in an ecological pyramid, a food web, or a food chain. It is inhabited by a collection of species that feed similarly.
According to a law put forth by Lindeman, only 10% of energy is moved from one trophic level to another, and 90% of that energy is wasted during the processes of transfer, respiration, and digestion. Only 10% of the energy entering a given trophic level of organisms is accessible for transfer to the subsequent higher trophic level, according to the 10% law. Example: Assume that the plants are exposed to 1000 Joules of sunlight each day. Think about a food chain: The first trophic level, the plants, contains 10 joules of energy. The herbivore will only have 1 joule of energy stored as food in the second trophic level due to the 10% law, which states that only 10% of 10 joules of energy, or 1 joule, will be available for transmission to the next trophic level. The third trophic level of carnivores will receive 10% of the remaining 1 joule.
So, option (B) is correct.

Note:
Since energy is a necessary component of many manufacturing and consumption processes, it is a major driver of economic growth. One of the most crucial inputs for economic growth is energy.