The answer is nitrogen fixation.
Hope this helps
Community structure is influenced by many factors, including abiotic factors, species interactions, level of disturbance, and keystone species, play particularly important roles in determining their communities’ structure.
The earliest forms would be plants and other life like that, and current day would be mostly humans and animals and a lot of plants are disappearing
The answer is Dendroaspis Polyepis (according to Google)
The root word cyto means "cell".
