Fossil: the preserved remains or evidence of a species homologous structure: a similar trait found in two different species that is the result of having a common ancestor transitional forms: fossils that show intermediate states between an ancestral species and its evolutionary descendants vestigial structure: a structure that has evolved to have no function in an organism

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.

yes? sounds right, but you didn’t ask a question.

it should be briana that has it to me