The two main characters in "the fault in our stars" are cancer patients. Biology is used to help find cures for diseases like these.
<h3><u>Answer;</u></h3>
peptidoglycan
The molecular basis of the Gram stain is the amount of<u> peptidoglycan</u> in the bacterial cell wall.
<h3><u>Explanation</u>;</h3>
- Gram stain is differential stain that is very useful for identifying and classifying bacteria as either gram negative or gram positive.
- Gram negative are those that decolorize easily, such as E. coli, while Gram positive are those that retain the primary stain and do not decolorize easily.
- The result depends on the bacteria cell wall structure, the cell wall of a Gram-negative bacterium is composed of 20 percent or less of peptidoglycan.
An infant develops a color preference for yellow and red between 20 to
28 weeks of age. At 4 weeks, the infant can follow a range of 90 degrees.
Between 6 to 12 weeks of age, the infant develops peripheral vision to 180
degrees. Between 12 to 20 weeks of age, the infant is able to accommodate to
near objects.
The definition of a biome is :
2. the specific condition of the atmosphere at a given place and time
biome basically support all the living organisms that exist
hope this helps
