Moral diversity in the citizen population by itself assures that some discrimination of this kind will occur.

Flagella and cilia are structurally conserved motile organelles found on diverse cell types, ranging from single-celled protozoa and algae to multicellular tissues in vertebrates. They have diverse roles, for example, they can propel cells such as sperm through their environment or move fluid across a cell surface, as in ciliated epithelia such as the respiratory tract and oviduct.

Now and anon a little puff of breeze caught the foresail and bellied it out for a moment, only to let it flap back against the mast, limp and slack, once more.

Theorem 15.2 A transformation such that the images of every three collinear points are themselves collinear is an affine transformation. Are the affine transformations the same as those transformations for which the images of any three noncollinear points are themselves noncollinear? We shall see the answer is Yes.