1. Introduction to microorganisms
Prokaryotes and eukaryotes
There is a vast array of agents that are capable of causing human disease (Fig. 3.1.1). A ‘family tree’ of all living organisms is shown in Fig. 3.1.2. This tree, with its three main branches, is very different from that suggested in the 1980s and has come about because of advances in molecular biology. The eukaryotic domain is a single group with almost unbelievable diversity, from single-celled amoebae through worms, fungi and plants right up to complex animals such as humans.
< div class='tao-gold-member'>
Only gold members can continue reading. Log In or Register a > to continue