Answer and Explanation:
Observing population directly gives you accurate result .
Direct observation does not need any intermediary as they themselves go for survey.
So, it is cost efficient.
Whereas indirect observing may involve manipulations.
It requires someone or many to hire who helps in surveying.
It incurs cost.
Thus, direct observation is always better than indirect observation.
All viruses have a capsid or head region that contains its genetic material. The capsid is made of proteins and glycoproteins.
Answer:
you didnt give us the equation
Explanation: