Frederick engels proposed that patriarchy developed in conjunction with

with the development of private property.

Explanation:

Oppression of women fits into the history of class struggle and has material foundations. In 1884, the German revolutionary Friedrich Engels stated, in his book "The Origin of Family, Private Property and the State", that oppression of women has an origin, that is, that did not always exist, based on the studies of his comrade Karl Marx, also a German revolutionary.

In this book, Engels stated that women's oppression is marked by patriarchy, patriarchy in turn, develops along with the concept of private property. According to Engels, the advent of private property has led to profound social transformations and antagonisms in relations that previously took place without a hierarchy of values. Man has accumulated wealth and power, elevating his position in the social spheres of life production to a "higher" status, while women's lives have been relegated to private spheres and undervalued domestic work. We are then facing patriarchy, the form of oppression and confinement of women in relation to men.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.