Prosimians
They are New World monkeys, Old World monkeys and apes, and prosimians, the most primitive primates
The most non-derived primitive primates are typically represented by the prosimians, which include lemurs, lorises, and tarsiers. Among these, lemurs, specifically those from Madagascar, are often considered some of the most primitive due to their unique evolutionary lineage and retained ancestral traits. Additionally, tarsiers exhibit primitive characteristics, such as large eyes and a reliance on nocturnal habits. Overall, these groups retain features that provide insights into the early stages of primate evolution.
A primate is a member of the most developed and intelligent group of mammals, including humans, monkeys and apes. The second interpretation of primate is religious. A Priest with the highest position in his country
No. marsupials are not considered primitive. They just have a different method of reproduction.
Most primative form of mass communication: Shouting; before speech in primates, loud sounds that the group associated with danger.
Lemurs are considered to be among the most primitive members of the primate order, but they are not direct representatives of the first primates. They belong to the suborder Strepsirrhini, which diverged early in primate evolution, alongside other groups like lorises and galagos. While they retain some ancestral traits, modern lemurs have evolved separately for millions of years, making them distinct from the earliest primates. Thus, they provide insights into early primate characteristics but are not direct descendants of the first primates.
It depends on what you mean by "primitive." The strepsirrhine primates and tarsiers have many traits that are ancestral for primates. However, strepsirrhines have more of these traits. Their group includes the lorises (and relatives) and the lemurs (including the Aye-aye).
brain stem is the oldest and most primitive
They were considered to be one of the most innovative cultures of their time.
Since we are considered primates as well, there are at least 7 billion.
Porifera (sponges) is considered one of the most primitive phyla because they lack true tissues and organs, and exhibit a simple body plan without symmetry.
The brainstem, consisting of the medulla, pons, and midbrain, is considered the most primitive portion of the brain. It controls basic life functions such as breathing, heart rate, and swallowing.