Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.
Human
Explanation - Humans have exceeded the carrying capacity. Technology is one of the considerable factor for reducing the death or mortality rate of humans and increasing the birth rate.
Example - the medical instruments have advanced to such an extent that the patient is more likely to get cured soon unlike previous years. It has now become a major concern that the population might reach to the extent when our planet, earth will not be able to sustain us.
Answer:
B: It occurs only in cells in the reproductive structures of organisms.
Explanation:
Glassy, because of the crystals being clear and shiny and fast cooling
