Dolphins sleep with one eye open
Answer: e. 2.5 ml
Explanation:
According to the dilution law,
where,
= concentration of stock solution = 20X
= volume of stock solution = ?
= concentration of required solution= 1X
= volume of required solution= 50 ml
Thus 2.5 ml much of a 20X tricaine stock solution is needed to dilute in order to make your solution.
The final phase the 5th phase I think
Because in science, "theory" doesnt mean what it means in everyday language. Scientific knowledge is known as theory. For example, electrical theory, germ theory, evolutionary theory, thermal theory, etc
