The net force cancels out throughout the pushing
All modern classification systems have their roots in the Linnaean classification system. The Linnaean system is based on similarities in obvious physical traits. It consists of a hierarchy of taxa, from the kingdom to the species. Each species is given a unique two-word Latin name.
The answer is A, genetic variation
Wilts, wood rot, sooty molds, rusts, and smuts. These are all types of plant diseases caused by Fungi. For example, dry rot is a wood decay caused by certain species of fungi that digest parts of the wood which give the wood stiffness and strength. All of them are plant diseases caused by fungi.
