The tundra and the savanna desert
From the total energy that reaches the ground, 1% is used by producers. The energy transference in the trophic web follows the 10% rule, in which each level uses 10% of the energy stored by the anterior level.
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- Only 1% of the total solar energy that reaches the ground is used by producers, who occupy the first trophic level.
- From this input of solar energy, it begins a unidirectional energy flow through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is finally dissipated in the environment.
- At each trophic level, it occurs an energy transfer from one level to the next, with only 10% being usable in each of them. This assessment is called "The 10% rule".
- This is, as a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time.
- The progressive reduction of energy determines the number of trophic levels (4 or 5).
If <u>30,000,000 MJ</u> of Sunlight (solar energy) reaches ground, then only <u>30,000 MJ</u> can be absorbed by primary producers.
<u>5,216.4 MJ</u> from 52,164 MJ of energy stored in the <u>soybeans</u>, are used by cattle.
1,645 MJ of energy is stored in edible beef by cattle who eat the soybeans.
<u>164.5 MJ </u>of this energy is tranferred to the following trophic level.
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Related link: brainly.com/question/13682231?referrer=searchResults
brainly.com/question/16664327?referrer=searchResults

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is a cranial nerve is generally thought of as a mixed nerve.
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The answer is D. An anion is a negatively charged ion, which means it has accepted an extra electron (s) from a donor ion (cation). To add an electron, energy has to be released so that the electron can be less excited and go back to its orbital level. The released energy is equivalent to the energy required to remove the electron from its orbital level.
Had to look for the options and here is my answer:
The development of pale skin as based on the study of genetics and mutation has been seen to be linked to the "<span>relatively recent European farming populations." This population had been a great influence for this change in their genes. Hope this helps.</span>