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Evolution has two key driving forces without which it would not occur, but with which it must occur:
The first is reproductive variation: this basically asserts that each organism is slightly different from both its parents and its siblings.
The second is differential reproductive success: this asserts that features that allow their bearers to reproduce more successfully than members of the same species with different features are likely to be present in a greater part of the population in coming generations.
In other words: the key driving forces behind evolution are variation and selection.
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What is the primary directing force in evolution?
Answer 1The most important directional "force" in evolution is natural selection, or differential reproductive success.Under natural selection I include sexual selection. Note that other people may list these two forms of selection under separate headers. Sexual selection is when organisms display preferences for mates with specific attributes, such as a colourful plumage, or broad hips and large mammaries.
What type of genetic change is most important for evolution?
Evolution is the change in allele ( different molecular form of the same gene ) frequency over time in a population of organisms.
What is responsive evolution involves organisms evolving in tandem to improve chances of survival an example of this type of evolution is?
Perhaps you mean group evolution, your question is unclear. It is also important to note that most evolutionary biologists don't believe group evolution happens.
What was the importance of photosynthesis in the evolution of the earths atmosphere?
the most important, the conversion of Carbon Di-oxide to Oxygen!
What is spontaneous evolution?
Spontaneous evolution is evolution that is not moderated by intentional beings and actions. Most evolution, in other words. Usually we call non-spontaneous evolution (ie. evolution that *is* moderated by intent): breeding.
Jonathan Edward what did he do?
Jonathan Edwards is considered to be America's most important theologian. He was a critical force in the shaping of the First Great Awakening.
What is the major natural force shaping the landscape over most of the Earth?
gravity
What has played the most important role in shaping the physical landscape of east Africa?
Tectonic processes have played an important role in shaping the physical landscape of east Africa.
Is distribution network innovation one of the most important forces shaping scm?
yes
Which force of erosion is the most important?
The most important and strongest force of erosion is Water.
Why is the neocortex important to evolution?
Neocortex is the region of brain only present in mammals , and most highly developed in humans , it is involved in all higher brains hence it is most important in mammalian evolution .
Which two geological processes appear to have been the most important in shaping the surface of venus?
volcanoes and tectonics
Charles Darwin's most important event of his life?
discovering evolution
How did Raymond dart contribute to evolution?
Discovered the Taung Child. One of the most important discoveries EVER! (in regards to evolution)
Which biological feature is believed to be the most important in the evolution of man?
eposibal thumbs
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Its mass.
What is the single most important factor controlling the evolution of a star and why?
i think its 3
