THE HUMAN EVOLUTION

Sharyn Daniela Henao Velez

Grado 9ª

Colegio bilingüe lauretta Bender

CONTEST

• Introduction

• What is evolution

• The human evolution

• The process of evolution

• conclution

Introduction

• Human evolution is the evolutionary process leading up to the appearance of modern humans. While it began with the last common ancestor of all life, the topic usually covers only the evolutionary history of primates, in particular the genus Homo, and the emergence of Homo sapiens as a distinct species of hominids (or "great apes").

What is evolution?

The human evolution

• Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.

The process of evolution

• The process of evolution involves a series of natural changes that cause species (populations of different organisms) to arise, adapt to the environment, and become extinct. All species or organisms have originated through the process of biological evolution.

• Evolution occurs when there is change in the genetic material -- the chemical molecule, DNA --which is inherited from the parents, and especially in the proportions of different genes in a population. Genes represent the segments of DNA that provide the chemical code for producing proteins. Information contained in the DNA can change by a process known as mutation. The way particular genes are expressed – that is, how they influence the body or behavior of an organism -- can also change.

conclution

• Man has been a tribal animal since he first walked erect, more than four million years ago. With the impediment of being bipedal, he could not out-climb or outrun his predators. Only through tribal cooperation could he hold his predators at bay.