While your florist can generally get almost any flower you want, in-season selections tend to cost less.

My family belong to a rather "literary" book club whose selection tended to consist of anything from the "top 20" in most high street bookshops.

The musical selections tend to shy away from hard rock and rap music.

Consequently, natural selection will tend to force species to adapt to different ecological niches.

In the course of their evolution, natural selection has tended to preserve design improvements and optimizations.

In Chapter 14 we saw how moral hazard and adverse selection tend to inhibit the setting up of insurance markets to deal with risk.

From a simpler perspective, natural selection will tend to reinforce a tendency to generate weak associations.

At that point natural selection will tend to eliminate the hybrids.

The selections tend to be about the vanishing past and the world to come.

I also figured that, by and large, this natural selection tended to improve the gene pool.