Acid rain, if I understand the question correctly.
Inserting foreign genes into fertilized goats eggs
Answer:
a
a process that selects variations to help with survi al and that spreads the variation to more offspring
Explanation:
the weak don't survive the strong thrive
Answer: less NaCl in the 0.6% solution bag
Explanation:
1. assume equal concentration of morphine sulphate (mg amounts anyway)
2. Assume both concentrations are either w/w or w/v
3. assume bags are of equal volume
4. 0.8% solute > 0.6% solute