Evolution Phenomenon

8/2/2019 Evolution Phenomenon

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Zufar Khalis

M. Al-Hafiz Rizky

M. Aidil Malih

M. Helmi H.

EVOLUTION PHENOMENON


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KINDS OF EVOLUTION


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"Cosmic Evolution" - the idea that space, time, matter and energy somehow

"exploded" (or expanded) from essentially nothing in the sudden "big bang"

that was the birth of our universe.

COSMIC EVOLUTION


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"Stellar Evolution." Since the big bang is thought to have produced onlyHydrogen, Helium and a variety of subatomic particles, these elements must

have somehow condensed into stars through some sort of evolutionary

process

STELLAR


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"Chemical Evolution."According to general thought, the only chemicalelements produced by the Big Bang were Hydrogen and Helium (and possibly

Lithium). As a result of the incredible heat and pressure within stars, these

original elements somehow evolved into the other 88 naturally occurring

chemical elements we observe today.

CHEMICAL


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"Planetary Evolution." The complex chemical elements thought to have

evolved within ancient stars were somehow ejected, possibly at the violent

deaths of stellar life cycles, releasing great clouds of swirling compounds.

These clouds of chemical elements somehow formed finely-tuned solarsystems, including our own.

PLANETARY


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"Organic Evolution" (also known as "spontaneous generation"). The theory

is that the planet Earth began as a molten mass of matter a few billions years

ago. It cooled off into solid, dry rock. Then, it rained on the rocks for

millions of years, forming great oceans. Eventually, this "prebiotic rock soup"(water + rock) came alive and spawned the first self-replicating organic

systems.

ORGANIC


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"Macro Evolution." All living creatures are thought to share a common

ancestor: a relatively "simple" single-celled organism, which evolved from

inorganic matter (so-called, "rock soup"). Essentially, the birds and the

bananas, the fishes and the flowers, are all genetically related.

MACRO


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"Micro Evolution." Micro Evolution is the variation and variety of traits

expressed in sexually compatible "kinds" of organisms. Examples include the

differences between various kinds of horses, dogs, cats, etc. This "variation

within a kind" is what Darwin observed in the mid-1800's, and what we still

observe today.

MICRO


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Evolution by means of natural selection is the process by which genetic

mutations that enhance reproduction become and remain, more common in

successive generations of a population.

NATURAL SELECTION


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Are evolution and "survival of the fittest" the same thing?

Documents

Evolution Phenomenon