animal and vegetable
The philosopher Aristotle's system of classification had two main groups: animals and plants. He further divided these into smaller categories based on shared characteristics and traits.
The two main categories are convenience goods and shopping goods; two lesser categories are specialty items and unsought goods.
Serif and Sans Serif
Matter is classified into two main categories: pure substances and mixtures. Pure substances are further divided into elements and compounds, while mixtures are divided into homogeneous and heterogeneous mixtures.
Aristotle's classification system included three main groups: animals, plants, and minerals. Within each group, organisms were further divided based on their shared characteristics and traits.
Organisms can be divided into two main categories: prokaryotes (organisms with cells lacking a nucleus, such as bacteria) and eukaryotes (organisms with cells containing a nucleus, such as animals, plants, fungi, and protists). These two categories can be further subdivided based on additional characteristics like mode of nutrition, habitat, reproduction, and evolutionary history.
Aristotle was not a chemist.
There are 22 Main Categories on WikiAnswers.
4 categories 1. Record of the Year 2. Album of the Year 3. Song of the Year 4. Best New ArtistAnswerAbove are the "Big Four" categories. But as of 2015, there are 25 other main categories, and 79 sub-categories.
Aristotle believed the main purpose of the human brain was to cool the blood.
Nichomachus (Aristotle's father), and Plato. There are many more but these are the main people.
Main categories in taxable bond funds are corporate bond funds, high-yield funds, world bond funds, government bond funds, and strategic income funds. The main tax-free bond fund categories are state municipal bond funds