nincompoop
the three main groups are that you gey(:
The three main groups in science are chemistry,biology and physics.
photo of the three basic food groups
Probably the wheat or wheat products is the main food of America.
To narrow it down to three groups, it would be strings, winds, and percussion.
There are five food groups in the food pyramid. Grains, vegetables, fruit, dairy, and meat/beans.
It has three main groups.
There are the food groups dairy, proteins, vegetables, fruits, grains, and oils.
Class Agnatha
There are three main groups: Igneous, Sedimentary, and Metamorphic.
The six main food groups are staples, food from animals, fats and oils, vegetables, legumes, and fruits.
The 3 main groups of seedless vascular plants are: ferns, horsetails and club mosses.