Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream
<span>biological reactions that happen within cells while reducing the complex interactions found in a whole cell. Eukaryotic and prokaryotic cells have been used for creation of these simplified environments[1]. Subcellular fractions can be isolated by ultracentrifugation to provide molecular machinery that can be used in reactions in the absence of many of the other cellular components.
Cell-free biosystems can be prepared by mixing a number of purified enzymes and coenzymes. Cell-free biosystems are proposed as a new low-cost biomanufacturing platform compared to microbial fermentation used for thousands of years. Cell-free biosystems have several advantages suitable in industrial applications</span>
Answer:
![f=2x10^8Hz](https://tex.z-dn.net/?f=f%3D2x10%5E8Hz)
Explanation:
Hello!
In this case, given that frequency of the electromagnetic radiation showing off a wavelength of 1.25 m is computed by using the speed of light as shown below:
![f=\frac{c}{\lambda }](https://tex.z-dn.net/?f=f%3D%5Cfrac%7Bc%7D%7B%5Clambda%20%7D)
We plug in the wavelength and speed of light to obtain:
![f=\frac{3x10^8m/s}{1.25m } \\\\f=2x10^8Hz](https://tex.z-dn.net/?f=f%3D%5Cfrac%7B3x10%5E8m%2Fs%7D%7B1.25m%20%7D%20%5C%5C%5C%5Cf%3D2x10%5E8Hz)
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Answer:
C. representative elements.
Explanation:
Families 1 - 2 and 13 - 18 are called representative elements or often times, main group elements.
- Elements on the periodic table belongs to four blocks which are s, p, d and f blocks.
- Those in the s and p-blocks are the main group elements also called representative elements.
- Their outer-shell are not completely filled with electrons but their inner shell is completely filled.