This quotation comes from Chapter 8. As Ponyboy sits in the hospital and watches Johnny dying, he muses on the fragility of group cohesion. It seems obvious that Johnny needs the greasers—he is small, passive, and poor, which makes him an easy target of Soc violence. Less obvious is the gang’s need for Johnny. The greasers need a vulnerable friend to give them a sense of purpose. Telling themselves that they exist to protect people like Johnny lets them avoid thinking about the fact that their poverty and vulnerability leave them no choice but to band together. Ponyboy comes to this conclusion at the end of the novel, as Johnny is dying. He understands Johnny’s value only when he is about to lose Johnny, which amplifies the pain of the loss.
The only lawful sexual connection is the marriage bed. All other sex activity is whoremongery and adultery, which will damn the soul forever in Hell. Heb. 13:4. Decadent, depraved, degenerate and debauched America, having bought the lie that It's OK to be gay, has thereby changed the truth of God into a lie, and now worships and serves the creature more than the Creator, who is blessed forever. Amen! Rom. 1:25. But the Word of God abides. Better to be a eunuch if the will of God be so, and make sure of Heaven. Mat. 19:12. Better to be blind or lame, than to be cast into Hell, into the fire that never shall be quenched. Mk. 9:43-48. Abstain, you fools.
Complex systems biology (CSB) is a field of science that studies the emergence of complexity in functional organisms from the viewpoint of dynamic systems theory.  The latter is also often called systems biology and aims to understand the most fundamental aspects of life. A closely related approach to CSB and systems biology called relational biology is concerned mainly with understanding life processes in terms of the most important relations, and categories of such relations among the essential functional components of organisms; for multicellular organisms, this has been defined as "categorical biology", or a model representation of organisms as a category theory of biological relations, as well as an algebraic topology of the functional organization of living organisms in terms of their dynamic, complex networks of metabolic, genetic, and epigenetic processes and signaling pathways .   Alternative but closely related approaches focus on the interdependance of constraints, where constraints can be either molecular, such as enzymes, or macroscopic, such as the geometry of a bone or of the vascular system.