A snake coming out of its hole in a dream represents a son. A snake leaving one's house in a dream means its destruction or demolition. Killing a snake in a dream means marriage. Tapeworms or other intestinal worms in a dream represent one's relatives and their children.
Single-phasing is a special type of open circuit fault in which only one phase of a three-phase system is disconnected, causing the remaining two phases to form a single-phase system [1]. Single-phasing may happen for a variety of reasons.
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.