molecule stimulates a target cell via a receptor. is not a intercellular communication.
The cleaning process is used to eliminate smudge and dirty grit. Because this dust can cause damage to the lens if reused, hence it is recommended that the wipe should be disposed of in order to prevent damage in later cleanings.
If you re-use it can have the possibility to smear oils from the fingers on the lens. Moreover, the dust from earlier used paper can damage the coating. Because the lens paper is like a paper sheet, once it is stained, you cannot use it again.
Answer:
In the 1920s people were more optimistic about the future because the economy was growing very fast, many people were enjoying new amenities like a vaccuum cleaner or going to the cinema for the first time, and credit was cheap, including mortgages. Nowadays, people are more pesimistic due to recent economic crisis, stagnation of income for many people, and rising inequality.
In the 1920s, people were also much more socially conservative, to the point that during most of the decade, the sale of alcohol was prohibitied. Nowadays, most people are less conservative and more liberal compared with the 1920s past, being more empathetic towards alternative lifestyles, and diverging opinions.
Explanation:
it is B i did that couple years ago
Answer: History matters in shaping the future of a country because it allows counties to understand changes and developments that had taken place to create the present society. In this highly globalized world we live in today, there is a need for developed countries to maintain the fast pace lifestyle while developing counties play catch up.