Vertebrates and invertebrates.
You tell me!
2 main categories 1. Internal 2.external
Metals, Non-metals, and metaloids
It is not possible to answer as there are many more than 2 categories.
There are 22 Main Categories on WikiAnswers.
IT is separated into two main categories (1) those which process information, such as computer systems, and (2) those which disseminate information, such as telecommunication systems.
There are four main categories: Epithelial tissue, connective tissue, muscle tissue and nervous tissue
The main categories of food are:CarbohydratesFatsProteinsVitaminsMinerals
there are 2 categories of twisted pair calbes 1. un-sheilded twisted pair (UTP) 2. Sheilded twisted pair (STP)
Classification . [:
The two main types of animals are vertebrates, and invertebrates. This is classified as animals with a back bone (vertebrates), and animals without a back bone (invertebrates).
The three main categories of fashion are haute couture,ready-to-wear and mass market.