Fleas, ticks and leeches are 3 common parasites
Theodor Schwann was the one who proposed the idea in the 19th century that cells can be classified into one of three major groups: plant cells, animal cells, and bacteria cells.
some only have three chambers
The six major groups of pathogens are bacteria, viruses, fungi, parasites, prions, and protozoa. Each group includes various species that can cause different types of infections and diseases in humans and animals.
The Taino people, the Aztec civilization, and the Mayan civilization were three major groups that shaped the cultures of both Central America and the Caribbean. Their contributions include art, agriculture, architecture, and spirituality that continue to influence the region's identity today.
There are three groups of parasites, these are: (i)Protozoan (ii) Helminthes (iii) Arthropods.
Bacteria, viruses, fungi, protozoa (aka protists), parasites.
tibretin
ThePhalangesMetatarsalsTarsals
fat fruit grain
Kurds, Sunni, and Shiites.
# Steroids # cholesterol # triglyceride
Archaea, Eubacteria, and Eukaryota
the three major groups are crustaceans spiders and inscets
Tropical, temperate, and arctic are three major climate types.
by there behavior and the way they look
clastic organic chemical