Light is a form of EM radiation.
EM radiation has no mass (it's just energy packets called photons).
EM radiation can travel through a vacuum. (The speed of light in a vacuum is called c and is around 300,000 m/s).
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These viral particles, also known as virions, consist of two or three parts: the genetic material made from either DNA or RNA, long molecules that carry genetic information, a protein coat, called the capsid, which surrounds and protects the genetic material.
The reason why good sanitary practice should be observe and done especially in terms of washing dishes immediately after a meal in order to prevent bacteria from going and by this, it makes the enviroment more clean and more safe to people to live in. It is because when plates or used utensils are not cleaned after having it used, bacterial growth could sprout, making the environment dirty and dirt could interfere with someone's health into having them acquire illness that would also affect not only one person but also other people living in the house. That is why good sanitary practice is observed, not only because it promotes cleanliness but it is also because for the better health of the individuals.
Answer:
It controls the movement of dissolved substances in and out of the cell.
Explanation:
It is said to be semi-permable
