петак, 28. октобар 2011.

Biodiversity


Srpska verzija je dostupna ispod.
As I said, after we learned that the conditions of life on Earth, it's time to learn what is biodiversity.
Biodiversity is derived from the words bios - life and diversus - diversity.
Biodiversity or biological diversity is a term in biology that is the total diversity live world.On includes all the various and changing forms, phenomena and processes that existed, disappeared, or even exist on Earth.
Today on Earth lived 30-10 million species.
And this: Monere - 10,000
       Protists 70,000
       Mushrooms 67,000
       Plants 322,000
       Animals 1320000
Describes only one of them 1,75 million.
Extinct species are much more than those living today.


OR, THE BIODIVERSITY IS OVERALL DIVERSITY OF LIVING BEINGS, GENES AND ECOSYSTEMS ON EARTH.

There is no part of the planet that is not inhabited: from the great depths of the sea, mountains, glaciers, desert canyons and so on.


Biodiversity includes:
the diversity of genes (genetic diversity) of each individual within any kind
diversity and specificity of individual species or species diversity (diversity specijski)
diversity of ecosystems (ecosystem diversity)

Genetic diversity - including diversity of genes. Every living being has certain properties (which determine the genes) which make it different from other living beings, but also from individuals of its species. If we look at genetic diversity of people, we can see that differ in eye color, hair, skin and body height. These genes determine everything.

Specijski diversity - Living things can be different sizes. Smallest organisms have several microns, while the biggest can be  30 m. Living things can be a single-celled (as an amoeba) or multicellular - composed of a large or a small number of cells. (Like a snake)

  
Ecosystem diversity - the variety of ecosystems eg forests and meadows.


All types can exist in different morphological forms: - the poles
                                                                                       - Age class
                                                                                       - Seasonal forms
                                                                                       - Geographical variations
                                                                                       - Ecological types
Living things in different ways come to feed. A large number of organisms was independently created and they are called autotrofi (mostly plants), while others use the ready made food - heterotrophs (usually animals), and organisms that combine both of them honest - miksotrofi. They all differ in adaptation to the diet.
Biodiversity was created during the evolution of the living world that began many millions of years ago and continues to this day. The role of each kind is invaluable for functionality and stability of the whole planet. It is therefore important to take care of the proper relation with nature, because improper relationship contributes to the extinction of species on the planet. What constitutes a catastrophic loss. Each body has its place in the circulation of matter and energy flow. So be careful when you decide that you do not keep a pet that you have (such as turtles, various hamsters, fish, snakes, lizards, spiders, parrots and many others) does not leave them in nature, but there are vratitie where you bought them because put any kind neprpada the ecosystem in which to leave it causes a whole range of environmental problems and can sometimes cause an ecological disaster.
Throughout history, wildlife, many organisms emerged, disappeared and changed it. This has led to today's biodiversity. So: that in the past all the organisms were the same FIRST BIG CHANGE TO LIFE AS WIPED UP WITH A PLANET, AND SO FAR TOOK PLACE 5 MAJOR MASS EXTINCTION! BUT LIVED WORLD FOR DIVERSITY MANAGED TO SURVIVE!
Centres of biodiversity are: mountains, canyons and gorges, steppes and sand, swamp, marsh and hydromorphic areas.
Biodiversity is greatest in the tropics, the seas and oceans (to 50% of our planet's biodiversity).
 Biodiversity is also an invaluable human resource! In all areas of life and the production of almost all things that exist.
Interesting: biodiversity index can be calculated by dividing the total number of each type of 1m2 divided by the total number of species of plants on 1m2.

Нема коментара:

Постави коментар