Natural Selection

It shows natural selection by showing how different birds have adapted over time to continue living, and the birds which didn't adapt, went extinct.

Natural selection leads to evolution by giving the organism that is best suited for the area to thrive. Thus those who not suited for the area die off and evolution moves forward.

Evolution occurs via natural selection when certain traits become more favorable in a population over time. This is typically due to the environment or natural selection pressures in the population. Natural selection works by favoring individuals with traits that are better suited to the environment while those with less favorable traits may die off or be less likely to reproduce. Over time these favored traits become more common while unfavorable traits become less common. This process eventually leads to evolution as the population changes to adapt to its environment.

The three main components of natural selection are:

• Variation: Individuals within a population have different traits
• Inheritance: Traits are passed from generation to generation
• Differential Reproduction: Traits that are more favorable are more likely to be passed on

Natural selection is an ongoing process as the environment is constantly changing and influencing the traits of the population. It is important to note that natural selection is not a directed process and does not necessarily lead to a specific outcome. The result of natural selection is determined by the environment and the traits that are favored in the population.

when there is competition

Environmental pressure. Amongst a certain population of a certain species, there will be many different mutations which developed and were passed on evenly due to neither being beneficial nor detrimental.

Any change to their habitat can be considered an environmental pressure. A drop in temperature, invasion of a competing species, etc. Natural selection will occur, as those with now-beneficial mutations are more likely to pass their genes on.

The population has not reached carrying compacity is correct on apex

The final decision on which offeror will be selected

Natural selection is like a filtering system for living things. There is naturally occurring variation but there isn't space and resources for every living thing born. So those who are not able to survive die out for some reason. Most importantly, some don't pass on their faulty genes, so there is a "generalised (and I use that term loosely here) better outcome in the gene pool.

It's a cruel mechanism, but vital to keep species from continuing to change and not die out due to the accumulation of bad genes or traits that would otherwise hinder them in competition with another.

Natural selection is the means by which living things are selected to reproduce. It is called natural because it is what happens in what is considered ordinary living conditions. It works by allowing only those creature capable of surviving getting to reproduce. If a creature is incapable of living/surviving in the environment that it finds itself in then it doesn't reproduce and becomes extinct.

Populations evolve, but individuals are selected. Natural selection affects individual organisms.

according Darwin evolution is a very slow process .......he says that generation after generation there will be a minor change in the organisms which arises due to the environmental influences and the need of the organisms......

Natural selection is limited by the ability of the population to produce variation. This in turn is limited by the amount of mutation a lineage can survive. Too many mutations, and the effect becomes detrimental. Too few, and the population may not be able to adapt fast enough to changing circumstances and go extinct.

Well, scientists, for starters. And most higher educated people. And a good portion of the general populace as well. People who don't accept natural selection generally reject it because they don't know or understand what it is, or because they don't want to know what it is for religious reasons.

The four stages are:

Overproduction, Genetic Variation, Struggle to Survive, and Successful Reproduction

Quite simply, the better an individual is able to mimic its surroundings, the less likely a predator is to spot it. This gives it a better chance of mating and passing its genes on to the next generation.

no

there is no genetic variation for natural selection to act upon

The primary driving force behind evolution is the environmental pressure, which encourages or discourages certain physical or behavioural adaptations to best fit the environment.

Natural selection is not a thing that acts on populations, it is a tendency for harmful genes to not be passed on (die out) and useful variations to thrive and become common.

Cultural evolution is the phenomenon whereby cultural ideas, notions, views, etc. propagate throughout populations, like alleles propagate throughout population gene pools in biological evolution.

Some propose that the way these ideas propagate throughout populations is similar to the ways of biological evolution, in that cultural ideas (or memes) are subject to a kind of cultural selection, that determines how fast they spread, and to what degree.

Simple observation. Look at the many species that have evolved to specialize to a specific environment. Let's say you have daisies growing in your yard. They will have some natural differences in them. Some may be taller than others. You mow your yard on a regular basis. Many of the taller ones can't survive long enough to go to seed. More of the naturally short ones survive to "mate" with other short ones and soon enough their genes come to dominate in that environment. Eventually you wind up with a species of short-stemmed daisies. However, that fact that this is an observable truth does not prove the idea that one species evolved from another (the theory of evolution). While it suggests that this is possible, there is a woeful lack of evidence to prove it. Even Darwin knew this and wrote about it. Those short daisies are still daisies.

The theories are evolution deal with the fact that every being on the planet today came from a now-extinct species. This goes for humans as well. Scientists believe that humans evolved from now-extinct mammals during the Late Cretaceous period. Evidence proves people came from a member of the gibbon family.

'competition between mates' as the words suggest mean that organisms in a habitat compete for their basic needs including mates. three tigers could be competing for one tigress. and the one that's the fittest wins (survival of the fittest).

when thinking about 'natural selection', think evolution. this is to say, over time, the traits that are strongest in an organism gets passed on from one generation to another. what you get as an end result is you may notice the weaker traits have extinguished while the stronger traits have become more obvious.

now the correlation between the two: imagine having two tigers fighting for a tigress. the stronger one with sharper claws and teeth wins the tigress over. this simply means the weaker tiger probably had some flaws in its traits. and because this winning tiger has strong traits, they get passed on and that's evolution (natural selection).

Natural selection occurs when four conditions are met:

1. There is variation among individuals.

2. That variation is at least partially heritable.

3. That variation is linked to differential reproductive success.

4. More individuals are born than can survive and reproduce.

The principle of natural selection is that the fastest or the strongest (in other words the most skill at a trait) would be the most desirable mate and the weak ones that lacked these skills or mutations like thumbs would not be mated with. So the principle of natural selection is we will always find the strongest, fastest or the most intelligent or other advanced traits more desirable.