The theory that is demonstrated by this experiment is natural selection.
Basically, only the strongest bacteria survived, and nature decided which of those bacteria were fit enough to get to live and reproduce in the future. Those bacteria that were "willing" and able to fight their way through a huge number of bacteria were the ones who ultimately won.
What help gravitational pull is Actually it's same like drinking coke through straw. Transpiration generates a sucking effect. This is called as transpiration pull and it helps in overcoming the gravitational pull downwards.
The 10<span>% </span>Rule<span> means that when </span>energy<span> is passed in an ecosystem from one trophic level to the next, only ten percent of the </span>energy<span> will be passed on. An </span>energy pyramid<span> shows the feeding levels of organisms in an ecosystem and gives a visual representation of </span>energy loss<span> at each level.</span>
The endosymbiotic theory opposes that mitochondria in eukaryotic cells rose from C. Endosymbiotic prokaryotes that metabolized oxygen.
The defining characteristic of the intertidal zone is that it is submerged with water during high tide and exposed to the air during low tide. The zone can take many forms, from sandy beaches to rocky cliffs. It is common for the intertidal zone to change frequently, since it is constantly battered by crashing waves.
Hope this helped.