A) Genetic drift is the random increase or decrease of genes in a population. Natural selection is not random.
Genetic drift is the change in the frequencies of alleles in a population due to chance events (random survival). Genetic drift exhibits strong effects in small populations and plays a smaller role the larger the population gets. Natural selection is the non-random change in the frequency of alleles in a population over time, because the change in frequency of the alleles is dictated by the different relative fitnesses that different alleles confer.
Dictionary definition: <span>(in the life cycle of plants with alternating generations) the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte arises. It is the dominant form in bryophytes.</span>
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D. potential energy to kinetic energy
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uplift is a developmental process to transform a certain species of animals into more intelligent beings by other, already-intelligent beings. This is usually accomplished by cultural, technological, or evolutional interventions like genetic engineering but any fictional or real process can be used.
Some of the most dramatic evidence for evolution has come from human agriculture. One of the most highly artificially selected crop plants is corn.
- Numerous branches of biology provide proof of evolution: Anatomy. Because a physical characteristic was present in a common ancestor, species may have similar physical characteristics (homologous structures). the study of molecules. The genetic code and DNA show how life has a common ancestor.
- The farmers kept the kernels from plants that had desirable traits and planted them for the harvest the following season. Artificial selection or selective breeding are terms used to describe this technique. Over time, maize cobs grew bigger and had more rows of kernels, finally taking on the shape of modern maize.
- Corn is one of the crops that has undergone the most artificial selection.
To learn more about evolution.
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