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The measure of variation which exists in the genetic makeup of any particular individual within a population is genetic variation. There are several key features and advantages associated with the genetic variation as it is an important factor causing evolution allowing natural selection thus leading to increase or decrease the frequency of alleles in a population.
The other factors causing genetic variation include random mating, mutation, random fertilization and recombination during meiosis between the homologous chromosomes.
The main advantage of genetic variation is it enables the individuals to adapt to environment as well as maintaining the survival of the population.
Based on the information on genetic variation we can conclude whether there is increase or decrease in the genetic variation of the population in the gene pool.
• A zebra migrates to join a different herd of zebras- Increase
• Competition for sunlight leads to taller trees- Decrease
• The DNA of a snake changes to make its venom stronger- Increase
• A grass-fire randomly sweeps through a population of buffalo and kills most of the animals- Decrease
Kingdom Animalia is the kingdom multicellular consumers. Remember that plants are producers mostly, and that Fungi can sometimes be single celled.
One example would be that the sleep schedule of animals might be thrown off. It would be dark the whole day, so the crepuscular (dawn/dusk) animals might be a bit confused, as would the nocturnal (night) animals. Would they stay awake all "day" and all night? What about the diurnal (day) animals? Would they just not come out all day long?
Answer:
Pulo ng Luzon.
Paliwanag:
Ang isla ng Luzon sa Pilipinas ay mayroong anim na pinaka-aktibong mga bulkan na matatagpuan. Ang islang ito ay isinasaalang-alang bilang pangunahing isla ng Pilipinas na mayroong mga aktibong bulkan. Ang aktibong bulkan ay tumutukoy sa mga bulkan na pinagmulan ng pagsabog ng Lava at iba pang mga gas. Sa pagsabog na ito, malaki ang pinsala na nagaganap sa mga halaman at pag-aari ng mga tao kung kaya't ang islang ito ay mapanganib na tirahan.