Choices:
<span>discovery of codons
discovery and extraction of DNA
creation of a model of DNA
creation of Photo 51
Marshall Nirenberg and Heinrich Matthaei's contribution to our current understanding of the genetic code is the DISCOVERY OF CODONS.</span>
One way to tell is to use nutrient density. Nutrient-dense foods contain high levels of essential nutrients per calorie; foods low in nutrient density contain few nutrients per calorie.
Hepa filters can efficiently remove microbes from the air (Option a is correct).
<h3>What are Hepa filters?</h3>
Hepa filters, i.e., high-efficiency particulate air filters, are used to separate microorganisms from the air.
These filters (Hepa filters) eliminate over 99% of microorganisms such as bacteria, dust and pollen particles having a size higher than 0.3µm.
In conclusion, Hepa filters can efficiently remove microbes from the air (Option a is correct).
Learn more about Hepa filters here:
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Answer: the law of c<span>onservation of energy.
</span>
This law applies to <span>isolated system and means that the total energy in a given frame of reference is conserved over time. Its</span><span> not created or destroyed and can only be converted from one form to another.
</span>The <span>conservation of energy can be proven by the Noether theorem.</span>
