Meselson and Stahl
<u>Explanation:</u>
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The classic experiment that supported the semiconservative model of dna replication was performed by Matthew Meselson and Franklin W. Stahl. In this model, the two strands of DNA unwind from each other, and each acts as a template for synthesis of a new, complementary strand. This results in two DNA molecules with one original strand and one new strand. They used E. coli bacteria as a model system.
Answer:
159HZ A
Explanation:
frequency= speed/wavelength
frequency= 342/2.15=159HZ
Answer:
a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving.
Explanation:
Explanation:
Technology-based:
1.As the name implies technology, no technology will be clarified about it. It only depends on the variables, which describes them.
2. That is based on a single facility's findings.
3. It takes into account the contaminants type and volume, and their equations to monitor them.
4. This is reserved for city or urban wastewater treatment plants only.
5. It takes into account the pH, need for oxygen and the suspended solids.
Water quality based on:
1.This is enforced if there is a need to apply stricter limits to pollutants that are not pleased with the limits of technology.
2. All basing on water quality was risk-based.
3. They placed some less importance on the technologies which is used in the technology based limit.
Water quality dependent restrictions are used as cool water fishery for streams.
The act on clean water will also include bodies of water belonging to wildlife, agriculture and others. The law also included that the physical chemical and biological variables of all the state water bodies must be controlled by these water quality based limits.
1. solid
2. The molecules are tightly packed together so tha means there is less movement between the molecules.