Answer:Determinants
Explanation:
Determinant covers causes, risk factors, mode of transmission (why and how)
Answer :
Vinegar is a weak acid. This is used to make a naked egg. When an egg is added in the vinegar for one day / 24 hrs, it reacts with the eggshell. The calcium carbonate shell gets dissolve.
Then an egg without shell is formed and the size of the egg does not change. The calcium carbonate reacts with acetic acid and forms carbon dioxide.
When the shell-less egg is kept in the vinegar for 48 hrs i.e. 2 days again, the water content in it enters into the eggs through the membrane. Then the egg gets somewhat bigger.
Otherwise, for 24 hrs, vinegar is acting like an isotonic solution and only dissolves the shell. This experiment would be done for showing the osmosis process through the cell membrane.
Wiping off the surface of the lab table with a disinfectant
Answer:
It is true
Explanation:
Use the DNA for the identification of suspects, it has been classified among secretors and non-secretors. In the category of secretors are individuals whose body fluids can be classified, through the determination of their blood group, with saliva being the most suitable substance.
Non-secretors can be classified but blood particles cannot be detected in the fluids.
