Our brains are overloaded with visual information, so it has to take shortcuts in order to process all of it. On what does the brain base these shortcuts to perception?

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

i think that you are smart and you should fit for it out