meiotic devision this is the answer it might help you
The distribution and abundance of organisms is determined by the interactions between organisms and between the non living environment. Energy and nutrients move within and between biotic and abiotic components of ecosystems via physical, chemical and biological processes. Human activity and natural events can have a profound effects on population, bio diversity and ecosystem processes
Answer:
both strands of the parent molecule act as templates
Explanation:
The process of DNA replication uses the existing parental DNA strands as a template. The enzyme helicase breakdown the hydrogen bonds between the base pairs of a DNA duplex to separate the two strands from each other. Each of these two DNA strands from a DNA duplex serves as a template for the process of DNA replication. Primase enzyme synthesizes primers on both the template strands which in turn are elongated by DNA polymerase enzyme.
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. Light is refracted when it crosses the interface from air into glass in which it moves more slowly. Since the light speed changes at the interface, the wavelength of the light must change, too. The wavelength decreases as the light enters the medium and the light wave changes direction. We illustrate this concept in Figure 3 by representing incident light as parallel waves with a uniform wavelength . As the light enters the glass the wavelength changes to a smaller value '. Wave "a" passes the air/glass interface and slows down before b, c, or d arrive at the interface. The break in the wave-front intersecting the interface occurs when waves "a" and "b" have entered the glass, slowed down and changed direction. At the next wave-front in the glass, all four waves are now traveling with the same velocity and wavelength