What are fossils? How are they reliable? What can we learn from them? Essay

Table of contentpage

  1. Questions………………………………………………………….2
  2. Introduction……………………………………………………….2
  3. What are fossils………………………………………………… … .2
    1. How dodos are formed………………………………………..2
    2. Types of fossils………………………………………………..3
    3. Where are fossils found…………………………………… … ..4
  4. How are fossils reliable……………………………………………4
  5. What can we larn from fossils……………………………………4
  6. Conclusion…………………………………………………………6
  7. Reference…………………………………………………………..7

Question: What are fossils? How are they dependable? What can we larn from them?

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Introduction

All the life beings ( people, animate beings and workss ) that we see today on the Earth have come from someplace. They have changed from one coevals to another over the period of times. The procedure of altering from one coevals to another coevals is called development. We learn development from dodos. Dodos are the remains of life being that died long clip ago. In this assignment, I am traveling to explicate what are fossils? How are they dependable, and what can we larn from them.

What are fossils?

Dodos are the remains of animate beings and workss that lived and died long clip ago. For such remain to be called a dodo, there are some procedure that it should travel through foremost. First the animate being has to decease and be buried rapidly and profoundly by the clay, sand or dirt and remain at that place for a really long clip. Scientists have decided that for such remain to be considered as a dodo, it have to be at that place for over 10000 old ages. Dodos are found in the sedimentary stone. A sedimentary stone is a harder stone that can last for many old ages. Dodos are in signifier of a rock but look like the original works or animate being.

Dodos are non found on the surface of the land, but they use to be under the sedimentary stone, hence people use to detect them when excavation, for illustration during building or when delving up a new mine.

In most states including Namibia, dodos are kept in Museums for people to larn and cognize about them, and for scientists to analyze them. One of the grounds why dodos are kept safely but non thrown off is for all the coevalss to cognize about the yesteryear, to cognize what sort of animate beings and workss that were one time alive 1000s of old ages ago.

How dodos are formed?

There are many ways dodos can be formed including permineralization, freeze, compaction, replacing, unchanged saving, carbonisation, recrystallization, authigenic saving, and entrapment by gold. Method of fossilisation frequently involves rapid entombment in such a manner that marauders and erosional effects are eliminated. So it is really of import for the organic structure to be at the environment that allow for rapid entombment. For the fossilisation procedure to take topographic point, the being should be at the topographic point where it is protected from other animate beings, particularly the 1s that eat meat e.g. king of beastss, and from natural elements ( e.g. air current, fire ) that would do the body’s dislocation ( www.acad.carleton.edu/ … / … ) .

Dodos are besides formed when minerals such as Ca carbonate envelope or replace castanetss and other organic affair, indurating or projecting them within a stone matrix such as breccia that remain unchanged for 1000000s of old ages ( www.maropeng.co.za/ … /what-are-fossils ) .

In most instances, the organic structure parts that fossilize are the harder parts of the organic structure such as castanetss, dentitions, caput skull, claw. Other parts like musculus and tegument are hard to be fossilising because of their softness which allows them to be easy decomposed.

Fossilization procedure takes a long period of clip to take topographic point. It does non go on in 100s of old ages. If you kill an animate being now and burry it, don’t expect to see that animate being turned into a dodo during your life-time. It will be discovered after 1000s of old ages.

Types of dodos

There are two chief types of dodos viz. body dodos and hint dodos.

  1. Body dodos

As their name suggests, organic structure dodos are the preserved remains of a works or animals’ organic structure. The best preserved organic structure dodos are from the hardest parts of the organic structure e.g. dentitions, castanetss, and leaves. Body fossils they give as a hint on how the works or animate being looked like.

  1. Trace dodos

Trace dodos are the remains of the activity of animate beings, they show us how an animate being lived, or what the animate being did while it was alive. Examples of hint dodos include footmark, teeth grade, egg shell, and nests, tunnels, trails, dungs.

Where are fossils found?

Both organic structure and hint dodos are normally found buried in sedimentary stone. Dodos can be found in more unusual topographic points every bit good such as inside gold or pitch cavities. Dodos can be found in many topographic points around the universe provided the conditions are right ( www.acad.carleton.edu/ … / … ) .

How are fossils dependable

Dodos are dependable because they show the true remains of beings that lived in the yesteryear. They are the most of import beginning of information about the history of the Earth. Fossils they show the true grounds of what go on in the yesteryear, and we can trust on them. Without fossils record we could hold no hint on what happened and what was present in the yesteryear.

Dodos can be trusted because they are non semisynthetic, they occur of course. They do non alter from clip to clip. Once they have been discovered, no 1 can turn them into something different. They will stay the same manner they were found.

Some people think that dodos do non supply the true grounds of the yesteryear because non all the life organisms that one time lived in the yesteryear are portion of the dodos record. The ground why non all animate beings have become dodos is because some animate beings like insects do non hold difficult skeletons that can be able to fossilise. The soft parts of the organic structure like musculuss and tegument decompose really rapidly after buried.

What can we larn from dodos?

Dodos records are really of import, and they are merely the beginning that helps us to cognize about what happened long clip ago. Without dodos we would hold no thought about what happened in the yesteryear.

By analyzing dodos we can larn a batch from them. First, dodos can assist us to cognize more about the history of the Earth, where we came from, how our ascendants lived, ( e.g. where they holding a lasting topographic point to remain or make they utilize to travel from one topographic point to another, where they nomadic or huntsmans ) , how they looked like, what they ate, what sort of diseases where they enduring from, what killed them, how did they survived, and their behavior towards one another. For illustration, in the past old ages, our ancestors’ physical visual aspect where non like us, and they were non called people but place e.g. Home species or place erectus.

Dodos they helped us to understand about development, how species are lived, where one species ends and where a new species begin. Dodos can besides assist research workers to larn about workss and animate beings that became extinct a long clip ago. For illustration, scientists learned everything about dinosaurs and sabertoothed Liberation Tigers of Tamil Eelams through research from dodos. ( classroom.synonym.com/can-learn-… ) .

Scientists can larn a batch of things about dodos. They can larn what types or beings lived, at what times, and when they lived. They can besides larn about when certain groups of animate beings evolved and what their ascendants were similar. ( www.answers.com/ … /what-kind-of- … ) .

Dodos give us an chance to cognize more about beings that lived in the past, but no longer exists e.g. dinosaurs. They besides tell us how animate beings and workss lived in the past differ from the one for presents, how they looked like, what they ate, and how large they were.

In add-on, Fossils can assist us larn about animate beings and workss that lived together, which 1s lived before or after others, and where on Earth these beings lived. They besides give us insight into the development of beings, which life signifier came foremost, how have certain being changed over clip.

Decision

To sum up, dodos are the preserved remains of workss or animate beings that lived and died long clip ago. For such remains to be considered as dodos, scientists have decided that they have to populate over 10000 old ages. Dodos can be formed in many different ways such as by permineralization, freeze, compaction, and entrapment by gold. Dodos are categorized into chief two groups viz. body dodos and hint dodos. Both organic structure dodos and hint dodos are normally found buried in sedimentary stone. Dodos are merely the beginning that we have which can assist us to cognize about what happened in the past therefore they are merely the beginning that we can trust on about the yesteryear. Without dodos we would hold no manner of cognizing about what happened in the yesteryear.

Mention

Fossilization. Retrieved February 20, 2015, from hypertext transfer protocol: //www.acad.carleton.edu/ … / …

What are fossils? -marapeng-official visitant Centre. Retrieved February 19, 2015, from hypertext transfer protocol: //www.marapeng.co.za/ … /what-are-fossils

What sort of information can scientists larn from dodos? Retrieved February 20, 2015, from hypertext transfer protocol: //www.answers.com/ … /what-kind-of- …

What can we larn by analyzing dodos? /classroom/synonym. Retrieved February 19, 2015, from hypertext transfer protocol: //classroom.synonym.com/can/-learn- …

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