Well it surely isn't nuclear, or electrical. It's not radiant either.. So the only answer is chemical.
At the time of this writing, the most recently available statistics pertain to 2010, at which point the World Bank reported that about 37.7 percent of the world's total land area was considered agricultural land, while approximately 10.6 percent was considered arable.
The first trophic level
they would want to eat the primary producers, which are located at the first trophic level. due to the 10% rule only 10% of the energy from the previous trophic level is passed on.
Homozygous recessive means that both plants will have ss alleles so all of their offspring will be ss
I'll give you the first one: it's a reactant of respiration. if you want the other answers just dm me so its easier to communicate
