Essays on Scientific Theories

Intro Evolution is a process by which species change over time due to selection pressures. Selection pressures allows only organisms that can adapt to their environment to survive and leads to the death of individuals who are not suitable to the environment and cannot survive. Over millions of years many of these species change to...

Evolution is a way that scientists believe the world was created and became what it is today. Human evolution is the process of change by which people originated from apelike ancestors. Scientific evidence suggests that the behavioural and physical traits of people originated from apelike relatives and started evolving from over a period of approximately...

Introduction: 26 million years ago, on the coastal plain of the sunshine coast, thirteen mountains were formed and are now known as the glasshouse mountains. These mountains were formed from a hotpot. It is now known that because the mountains are in the middle of the Indo-Australian plate meaning there are no plate boundaries that...

Considerable speculation surrounded Alfred Wegener’s Plate Tectonic Theory that was first published in 1915. Critics argue that Wegener did not obtain resolute evidence to support his ideas. Even though Wegener’s theory was later discredited, his proposal was a stepping stone for others in the scientific community to explore and build on plate tectonics and continental...

The Earth is a dynamic planet by the lithosphere’s drifting. The lithosphere is a solid plate that cover the earth. The result shows that plates change at a speed of 1 cm to 10 cm per year (Hamilton, Rosanna L, 1995). According to the theory, the lithosphere can be divided into six plates, which are...

The Plate Tectonic theory explains how the structure of the earth’s crust and its associated phenomena, result from the interaction of lithospheric plates, and is integrally linked to the landforms that exist, animals that thrive and the oxygen that we breathe. It was, and remains, fundamental in the formation and development of the Earth as...

Introduction and Why are Homo Sapiens bipedal? Bipedalism is an adaption to modern humans and their ancestors and hence is a feature differentiating modern humans from other living primates (Sockol, Raichlen and Pontzer, 2007). Homo sapiens are the only living primate to use bipedalism as their form of locomotion. Bipedalism is however seen in other...