The two kinds of basic cell division include mitosis and meiosis.
Mitosis is where a parent cell divides and produces 2 genetically indentical daughters cells. So this means that when the cell division is complete, the number and even the sequence of chromosomes is exactly same as the original parent cell.
And in meiosis, also called reduction division, is where the parent cell divides and produces 4 genetically different daughter cells, which has only half of the number of chromosomes than that of the original parent cell. This process has to go through 2 times of divisions.
Mitosis is usually seen in most somatic cells, it is very important to activities such as growth, repair etc. Meanwhile, meiosis is seen in gametes, and its important for sexual reproduction.
The allele frequencies in the two ponds will become more similar to each other. Migration has two major effects . First it causes the gene pool of populations to become more similar. Second , migration adds genetic variation to population. Different alleles may arise in different populations owing to rare mutational events and these alleles can be spread ti new populations by migration, increasing the genetic variation within recipient population.
Sickle cell anemia causes elevated platelets
Los rayos gamma (radiación) tienen la mayor energía porque la radiación tiene la frecuencia más alta. Realmente espero que esto ayude :)
The Sun dumps a lot of thermal energy by sunlight into the atmosphere, and especially into the oceans. Basically, currents arise as warm equatorial waters move to the NORTH carrying heat, and as part of this flow, the cold polar waters go south and there get heated. Then, the SUN is like an engine which drives ocean currents.
Hope that helps