How Youâll Know if Something is Wrong. Symptoms are typically related to the cause of the high white blood cell count. If the cause is an infection, symptoms will typically appear as fever, lack of appetite, moodiness, and fatigue. If the infection is external there may be a rash, wound, or abscess.
Sexual reproduction is able to generate genetic variation in offspring because the process of meiosis randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism.Genetic variation is one of the keys to evolutionary fitness. This is made possible because reproductive cells undergo meiosis, which is the process in which one cell divides twice to produce four sperm or four eggs.he two gametes then randomly fuse to form a new organism. Genetic variation is one of the keys to evolutionary fitness. This is made possible because reproductive cells undergo meiosis, which is the process in which one cell divides twice to produce four sperm or four eggs.
Sympatric speciation occurs when populations of a species that share the same habitat become reproductively isolated from each other. This speciation phenomenon most commonly occurs through polyploidy, in which an offspring or group of offspring will be produced with twice the normal number of chromosomes.peciation can take place in two general ways. A single species may change over time into a new form that is different enough to be considered a new species. This process is known as anagenesis. More commonly, a species may become split into two groups that no longer share the same gene pool.