Answer Expert Verified. The correct answer is A) producers. That is because they create the energy themselves and don't waste that much. Primary eat those plants so they only take a part of the produced energy, while the secondary eat them and then have even less energy, and the tertiary get the least.
Which ecosystem has the highest trophic efficiency?
In terms of NPP per unit area, the most productive systems are estuaries, swamps and marshes, tropical rain forests, and temperate rain forests (see Figure 4).
Why is the efficiency of energy transfer from primary consumers to secondary consumers lower than that for producers to primary consumers?
The secondary consumers tend to be larger and fewer in number. This continues on, all the way up to the top of the food chain. About 50% of the energy (possibly as much as 90%) in food is lost at each trophic level when an organism is eaten, so it is less efficient to be a higher order consumer than a primary consumer.
Which group has the highest production efficiency?
Plants have the greatest net production efficiencies, which range from 30-85%. The reason that some organisms have such low net production efficiencies is that they are homeotherms, or animals that maintain a constant internal body temperature.
What 3 ecosystems have the lowest productivity?
Terrestrial ecosystems – in order, from most to least productive: 1. The biomes with the lowest levels of primary productivity include deserts, the tundra, the open ocean, and the lakes and streams biome.
Where does the other 90% of energy go?
What happens to the other 90 percent of energy? It is used for metabolic processes or given off to the environment as heat. This loss of energy explains why there are rarely more than four trophic levels in a food chain or web.
Why is only 10 percent of energy transferred?
How is only 10% of energy is passed from a trophic level to the next trophic level? Energy is transferred along food chains, however, the amount of available energy decreases from one trophic level to the next. The reason for this is that only around 10 per cent of the energy is passed on to the next trophic level.
What is 10 percent law BYJU's?
The 10 percent law of energy flow states that when the energy is passed on from one trophic level to another, only 10 percent of the energy is passed on to the next trophic level.
Why pyramid of energy is always upright?
Pyramids of energy are always upright, since energy is lost at each trophic level; an ecosystem without sufficient primary productivity cannot be supported. All types of ecological pyramids are useful for characterizing ecosystem structure.
Which pyramid is always inverted?
Ecological pyramid is the graphic representation of the number, biomass, and energy of the successive trophic levels of an ecosystem. Pyramid of biomass in sea is generally inverted.
What type of energy pyramid can be inverted?
pyramid of biomass