Evolutionary adaptations cannot be predicted. Flora and fauna adapt to changing circumstances and environments by chance, not by design.
Variation under domestication refers to the diversity in traits of domesticated animals or plants resulting from selective breeding by humans. Variation under nature refers to the diversity in traits of wild organisms shaped by natural selection and evolutionary processes in their natural habitats.
population is the primary evolutionary unit of any living organisms
Natural selection doesn't reduce variation. Variation is regulated by the rate of mutation.Natural selection reduces the chance of bad variation from being passed on and increases the chances for good variation to be passed on.
The effect of genetic drift on selectively neutral genetic variation is to cause random fluctuations in allele frequencies within a population over time. This can lead to the loss or fixation of alleles, contributing to genetic divergence between populations. Since the variation is selectively neutral, these changes are not driven by natural selection but rather by chance events, particularly in small populations. Over time, genetic drift can reduce genetic diversity and impact the evolutionary trajectory of the population.
evolutionary forces is most likely to decrease variation between populations
yes
Evolutionary change occurs through a combination of genetic variation, natural selection, and environmental factors. Genetic variation arises from mutations, genetic recombination, and gene flow, leading to differences in traits among individuals. Individuals with advantageous traits are more likely to survive and reproduce, passing on these traits to future generations, resulting in evolutionary change over time.
Reproductive variation is central to evolution. All else in evolutionary theory follows directly or indirectly from the fact that organisms reproduce with variation.
To make a long answer short, when a variation helps an animal survive in its habitat, that animal will become more successful than it used to be, and enough variation can lead to a new species.
Evolutionary adaptations cannot be predicted. Flora and fauna adapt to changing circumstances and environments by chance, not by design.
The fewer the controls, the less chance for mistakes
No, the theory of evolution is not based solely on chance. While genetic variation arises through random mutations, natural selection acts on these variations in a non-random manner, favoring traits that increase an organism's fitness in a given environment. This process results in the gradual change and adaptation of species over time.
Variation under domestication refers to the diversity in traits of domesticated animals or plants resulting from selective breeding by humans. Variation under nature refers to the diversity in traits of wild organisms shaped by natural selection and evolutionary processes in their natural habitats.
population is the primary evolutionary unit of any living organisms
There is no natural selection and therefore no evolutionary need for a difference between genders.
You have to have variation in order to be able to have more successful variations, which succeed in evolutionary terms, and less successful variations which fail. If there were no variation in a species, there would be no natural selection.