The theory of evolution by natural selection simply summed up.
The nonrandom survival and reproductive success of randomly varying organisms.
His theory predicts that, overtime, the number of individual with beneficial traits will increase in a population.
Gradualism isn't a prediction of natural selection, but of our understanding the mechanisms that produce reproductive variation. Natural selection makes predictions about allele frequencies in populations and reproductive fitness.
a
Yes, a few animals can predict the natural calamities.
They happen so fast
You cannot predict a natural diaster unless you have been notifyed by a special organisation
Gradualism isn't a prediction of natural selection, but of our understanding the mechanisms that produce reproductive variation. Natural selection makes predictions about allele frequencies in populations and reproductive fitness.
a
False. Organisms are never ' perfectly adapted to the environment, as evolution is blind and can not predict the future, or create anew. All is ' tinkered ' together in the organism on top of adaptions that were from past environments. Natural selection adapts as best it can to the immediate environment and carries vestigial traits and poor engineering solutions on to future generations. ( appendix and the hole in the retina for two examples of this ) While man can shape his environment only a benighted social scientists could think we, as living organisms. are beyond natural selection and evolution, or that we have been perfectly adapted to the present environment.
What all the ideal non-real conditions of the Hardy-Weinberg equilibrium predict; no evolution takes place. Mating is assortative, non-random in the real world and sexual selection is at work when assortative mating takes place, thus evolution.
Well, our existence. That's one. Orgasms, that's a product of evolution. Happiness, joy, the instinct to help one another, those are all products of natural selection. We also use evolution to fight against diseases, predict how they're going to change and so on. Evolution also ensures that the various changing ecosystems in the world don't come crashing to a halt and cut short our food supply, that's nice. If you mean our continued evolution, we're getting smarter (though at a depressingly slow rate), taller, and we're adapting to changes in our diets.
Primates
Evolution doesn't work like a step-ladder going up. It is a diverging tree. Where humanity is going is very difficult to predict. Natural selection doesn't act much upon our populations any more. Now our evolution will be governed almost exclusively by genetic drift which is a random process. One simply cannot predict this, it just might be that tomorrow another major extinction event occurs wiping out 99.99% of species and things effectively have to start over with a severely pruned evolutionarily tree. Given such an event and the fact that there is only one human speciesand well over a million beetle species, which do you think has the higher statistical chance of surviving long term.
The study of evolution and history both involve analyzing and interpreting change over time. Evolutionary biology focuses on genetic changes in populations, while history examines changes in societies, cultures, and events. Both disciplines use evidence to understand the processes that have shaped the modern world.
Yes, a few animals can predict the natural calamities.
They happen so fast
You cannot predict a natural diaster unless you have been notifyed by a special organisation
they predict other natural disasters like earthquakes and see if the trembles will reach the other side of the ocean causing a tsunami.