Life On Earth

Dr. Misbah Bhayo

Description

A book for knowing the concepts of life, and this book is also a good guider for a healthy life.
Explore the genesis of our extraordinary planet and the
remarkable journey of life, from its humble origins to its
flourishing diversity. Delve into the intricate tapestry of Earth’s
formation while unraveling the secrets to enhancing the
holistic well-being of humanity.

Sujets

• Médecine
• Médecine Générale
• Life Sciences
• Sciences et techniques
• Organism
• Science

Informations

• Publié par: iUniverse
• Date de parution: 17 juillet 2023
• Nombre de lectures: 0
• EAN13: 9781663254481
• Langue: English
• Poids de l'ouvrage: 3 Mo

Extrait

LIFE ON EARTH
EVERYTHING ABOUT LIFE
DR. MISBAH BHAYO


LIFE ON EARTH EVERYTHING ABOUT LIFE
 
Copyright © 2023 Dr. Misbah Bhayo.
 
All rights reserved. No part of this book may be used or reproduced by any means, graphic, electronic, or mechanical, including photocopying, recording, taping or by any information storage retrieval system without the written permission of the author except in the case of brief quotations embodied in critical articles and reviews.
 
 
 
 
 
iUniverse
1663 Liberty Drive
Bloomington, IN 47403
www.iuniverse.com
844-349-9409
 
Because of the dynamic nature of the Internet, any web addresses or links contained in this book may have changed since publication and may no longer be valid. The views expressed in this work are solely those of the author and do not necessarily reflect the views of the publisher, and the publisher hereby disclaims any responsibility for them.
 
Any people depicted in stock imagery provided by Getty Images are models, and such images are being used for illustrative purposes only.
Certain stock imagery © Getty Images.
 
ISBN: 978-1-6632-5449-8 (sc)
ISBN: 978-1-6632-5448-1 (e)
 
 
 
 
 
iUniverse rev. date: 07/13/2023
CONTENTS
PART-01
1.01 How planet Earth was created?
1.02 History of life on Earth
1.03 First animal on Earth
1.04 First land plants plunge on Earth
1.05 The Jurassic periods
1.06 History of stone age
PART-02
2.01 Cell Biology
2.02 DNA (Deoxyribonucleic Acid)
2.03 Ribonucleic Acid (RNA)
2.04 Mitosis and Miosis
PART-03
3.01 New world
3.02 Modern life
3.03 Health issues
3.04 A Healthy Life

 
 
 

PART-01

1.01
How planet Earth was created?
P lanet Earth evolved scientifically over billions of years. It began to form roughly 4.5 billion years ago when the solar system was created through a process called accretion, which is the buildup of small particles and objects into larger bodies. Over time, these objects collided and merged together until they reached their current states as planets, asteroids, and other celestial bodies.

In the early stages of formation, Earth was heated by impacts from meteors and comets that brought water and volatile materials to its surface. As temperatures cooled, oceans formed along with landmasses that eventually developed into continents. Over millions of years of plate tectonics activity and erosion from wind and rain, our planet gradually shaped itself into what it looks like today. The continuous evolution of Earth’s environment has also allowed for organisms to appear, evolve, and eventually form complex ecosystems. This process continues to shape our planet today and will continue far into the future.
Earth is constantly evolving, with new species and changes in climate occurring every day. It’s an ever-dynamic system that scientists are still discovering more about each day. By understanding how Earth developed over billions of years, we can get a better insight into how it functions today and how we can help protect it for future generations.
“The Snowball Earth”
ball Earth is a scientific theory that suggests the Earth once experienced a period of extreme glaciation, or “snowballing.” This event occurred around 750 million years ago, when large areas of the planet became covered in ice and snow. The extent of this event is still debated by scientists and may have only affected parts of the planet, rather than the entire surface. During this time, global temperatures fell significantly and much of the ocean was frozen over.
 
It is believed that Snowball Earth began due to a decrease in atmospheric carbon dioxide levels caused by intense volcanic activity. A drop in sea surface temperatures further exacerbated conditions as cool waters spread across the globe. The ice sheets created reflected sunlight back into space which resulted in even lower temperatures. Eventually, the planet’s entire surface was encased in snow and ice.
Though scientists disagree on how long this period of glaciation lasted, there is evidence that Snowball Earth ended when volcanic activity increased atmospheric carbon dioxide levels. This caused global temperatures to rise and allowed for glacial melting. Evidence suggests that the evolution of photosynthetic organisms played a role in the end of the event as they released oxygen into the atmosphere which further warmed the planet. The effects of Snowball Earth can still be seen today in areas with rocky terrain or ancient sedimentary rock deposits.
“Earth Landscape”
The earth’s landscape today is due to a combination of various geological processes which have been occurring scientifically since the earliest days of planet formation. Mountains, rivers, and other features were created by the movement of tonic plates and erosion by water wind, and ice.

The of tectonic plates beneath the Earth’s surface continually reshaped the surface over millions or billions of years as they collided with one another. This process has formed mountains like the Rocky Mountains in North America and Europe’s Alps. Rivers were also formed by this process when two landmasses separated leaving gaps for water to pass through. Erosion was also an important factor in shaping the world’s landscapes; weathering and abrasion from strong winds, flowing water, and ice have caused river valleys and canyons to form around the world. Over time, all these processes combined together to create the unique and diverse landscapes we see today.
The scientific understanding of how mountains, rivers and landscape formed on Earth is a reminder of the power of nature’s forces that are still at work beneath our feet. It also serves as a fascinating example of how the earth has changed over millions or billions of years in response to geological processes. Knowing more about this process may help us better understand changes occurring now due to climate change so that we can prepare for them and protect our environment more effectively going forward.
1.02
History of life on Earth
S cientists believe that life on earth began some 3.5 billion years ago as single-celled organisms. They hypothesize that these primitive forms of life were created through a process called abiogenesis, which essentially states that inorganic matter combined with energy can create organic molecules and eventually living organisms.

While this is the most widely accepted theory among scientists, it will likely remain largely unproven until further research and experimentation is conducted.
The exact details of how the first life forms came to be are still unknown, but whatever happened has had an incredible impact on our planet’s evolution since then. From those humble beginnings, we’ve seen species multiply, become more complex, and spread all over the globe. Today, there are an estimated 8 million different species of living things, making life on Earth one of the most diverse and fascinating phenomena in our universe.
We may never fully comprehend how these first organisms came to be, but their contribution to the history of life on Earth is undeniable. From those tiny creatures that existed billions of years ago, we now have a planet teeming with life-spanning from microscopic organisms like bacteria to massive mammals like blue whales. The story of life on Earth is an incredible journey, and it’s all thanks to those very first living beings who started it all.
What is Life?
Life is a term that has been used to describe various phenomena in the universe. Scientifically, life can be defined as living organisms that have the ability to grow, reproduce, and interact with their environment. This definition applies to both single-celled organisms like bacteria and complex multi-cellular organisms such as humans. Life is thought to have evolved on Earth over billions of years and is an integral part of the planet’s ecosystem. Life forms are also found in other parts of the universe, such as on other planets or moons, although none that have been discovered so far are known to be capable of reproduction. As we continue to explore the universe, it is possible that life may be discovered in other places. In any case, life on Earth is an incredible miracle that deserves recognition and celebration.
The study of life is the field of biology, which involves understanding the structure and behavior of living organisms. This includes studying their anatomy, physiology, genetics, evolution, ecology and many other topics related to life. Biology has made incredible advances in recent years, from uncovering the genetic code to discovering new species. Through this research we have been able to gain valuable insight into the workings of life on Earth and how we can better protect it.
Understanding what is life and appreciating its complexity will help us further appreciate the incredible gift that living organisms provide us with, from their essential role in maintaining the health of our ecosystems to providing us with food and other resources.
1.03
First animal on Earth
S cientifically, the first living animal to appear on Earth is hard to pinpoint. Generally speaking, scientists believe that animals evolved from single-celled organisms between 600 and 700 million years ago. The earliest known forms of life were simple organisms such as bacteria, algae and protozoans. These primitive creatures eventually evolved into more complex species such as jellyfish, worms and starfish.

Eventually, these aquatic animals shifted onto land where they eventually evolved into the many different types of terrestrial animals we see today. Thus, although it’