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FREE ESSAY ON BIODIVERSITY

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Biodiversity and Animal Rights
An investigation of the ethical arguments found in biodiversity and animal rights. -- 1,150 words;

Biodiversity
An analysis of evolutionary history and biodiversity. -- 2,955 words; MLA

The Biodiversity of Mexico
This paper discusses the biodiversity of Mexico, the third largest nation in Latin America after Brazil and Argentina. -- 2,970 words; MLA

Ecosystems and Biodiversity
Discussion of the value and importance of the rainforests to our environment and to our survival. -- 3,025 words;

Biodiversity in Ontario
A look at the importance of protecting the ecosystems in the Ontario region. -- 1,350 words;

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BIODIVERSITY

Diversity Essay
American biologist R. H. Whittaker in 1959 described a classification system of five
primary kingdoms: plants, animals, fungi, protists, and monera. Kingdom animalia cover
all taxonomic kingdom all living or extinct animals, an example of an animal is a human.
Humans thrive off of one thing or another in each of the five kingdoms. The monera
kingdom is the lowest division of rhizopods. Bacteria belong to this kingdom. There are
many useful and harmful bacteria in the human body including those that are similar to
amoebas. They don't have a nucleus. Plantae consist of all living or extinct plants
(Plantae, kingdom Plantae, plant kingdom) the taxonomic kingdom that consist of all
living or extinct plants. Humans need to have a daily intake of plants to get energy and
nutrients so as do most animals in the animalia kingdom that are either herbivore or
omnivore. The Fungi kingdom is composed of heterotrophs, organisms that do not produce
their own food. One example of this is a paramecium. The Plantae kingdom is composed of
multicellular autotrophs, which means they don't produce their own food. Protista are a
group of very simple organisms, called protists. They have characteristics of both plants
and animals. Most protists are unicellular (consisting of a single cell) and can only be
seen with a microscope, although there are some that are made up of more than one cell.
All organisms are different even if they do belong to the same kingdom. All species have
developed specific mannerisms to benefit them in their environment. Their body structure,
reproductive system and food they eat all depend on how they have adjusted to their
habitat. Some examples of species that are different from one another are: sequoia
redwood trees, which belong to the Plantae family, protists which are protista (a group
of very small organisms), arthropoda which are animalia, and bacteria are a type of
monera. 
Bacteria is in the Monera kingdom are the most common and ancient organisms on earth,
bacteria are closely connected to the lives of all organisms. Bacteria is prokaryotic,
they obtain nutrition like fungi, bacteria feed on dying material and convert it back
into basic substances. Bacteria also they get energy by photosynthesis. Bacteria
reproduce asexually through a process called binary fission, in which a copy of the DNA
is made and then the membrane divides to make two, identical bacterium. Like all cells,
bacteria DNA. However, regular DNA is arranged in strands, bacterial DNA is circular.
Bacteria also have genes on smaller rings called plasmids. 
Redwood trees belong to the Plantae kingdom. These trees are very unique in compairison
to other trees. This tree produces its own food by a process we call photosynthesis. It
uses elements around itself such as the sun and carbon dioxide to produce food. This tree
reproduces asexually. Which means the tree contains both male and female parts. It
doesn't need another tree to produce offspring, it is able to do this all on its own.
There are two types of redwood trees due to environment. The coast redwood grows along
the pacific coast from southern Oregon to central California. The life span of the coast
redwood is believed to be 2500 years. The leaves are bluer in tone than the Dawn Redwood
trees and are more needle-like. The Dawn Redwood trees were at one time were the most
common sequoia tree in North America and was thought to be ancestral to the California
redwood. The branches and leafs are different on this tree in comparison to the coast
redwood. 
There are a wide variety of protists, and they inhabit many different environments-fresh
water, seawater, soils, and the intestinal tracts of animals, where they perform crucial
digestive processes. Like plants, many species of protists can make their own food by the
process of photosynthesis. Like animals, many protists can move around under their own
power. Protists do not have cells organized into specialized tissues. The protists
include organisms like seaweeds, amoebas, and slime molds. Protists reproduce asexually,
cells simply grow and divide. The kingdom Protista contains many economically important
members, including organisms that cause diseases, such as malaria. Biologists theorize
that members of the kingdom Protista gave rise to the kingdoms Plantae, Animalia, and
Fungi about 600 million years ago. Protista kingdom is generally very simple. Protista
have characteristics of both plants and animals. Most protists are unicellular and can
only be seen with a microscope.
Arthropoda, unlike protista are animalia. Arthropods are invertebrate animals that have
an external skeleton and jointed appendages. Some examples of Arthropoda are crustaceans,
insects, and spiders. The phylum "arthropoda" is the largest in the animal kingdom, with
about 875,000 known species found in almost every known habitat. Early arthropods were
probably much like their presumed ancestors, annelids. Their body was long, soft, and had
many segments, all much alike and each equipped with a pair of limbs. Through time the
surface of the body became hardened to form an external skeleton. This development
protected them a lot but became a drawback. For example, an exoskeleton has to be shed if
growth is to occur, and during this process the animal is soft and vulnerable. The
strength and some other properties of an exoskeleton also diminish with size. Most
arthropods don't grow very big. Lobsters can reach a weight of about 44 lb. Arthropods
that are unsupported by water and never grow that large. Their exoskeleton protects them
from becoming dehydrated, that is why many arthropods live in the desert. The nervous
system of an arthropod is complicated, but is pretty small. 
Every organism is unique and different from one another. Species have to adapt to the
environment by taking on new mannerisms to help benefit themselves. Through evolution and
time every species changes in one way or another to make it earier to work in the
environment that it inhabits. Elephants, humans, ciliophora, artichokes, and turtles. 
Elephants over the years, evolving from woolly mammoths have developed the need to have
less hair. Adapting to being in a hotter climate. Humans evolved from monkeys and we lost
our hair too. Our jaws got smaller and our brains got bigger, to adapt to the environment
that we were living in. Another adaptation that we have is having arms and legs and being
able to walk upright. Artichokes on the other hand have many leafs to protect their
tender heart. Leafs protect the inner part of the plant so it doesn't get damaged.
Adaptation has helped the Ciliophora to move itself along. Ciliophora adaptated by having
small hair-like projections all over its body that help it propel itself, and generally
get from place to place. 
A very diverse ecosystem is usually one that is stronger because all of the organisms
need one and another to thrive and live. Cohabitation among organisms helps all species
to do their part in the environment more productively. Diversity among groups is
therefore considered a proof of the condition of an environment. Diversity is what makes
life fun and interesting. With out it what would we all be, nothing, literally!

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