Which one is necessary for Hardy-Weinberg equilibrium? A. mutation

B. Natural Selection

C. random population

D. migration

I think it's c .random population

Explanation:

5 essential conditions for a population to be at Hardy-Weinberg equilibrium. These are:

1. Population must be very large.

2. There must be no immigration or emigration.

3. There must be no mutations.

4. Random mating

5. There must be no natural selection in a population.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.