9. (04.03 LC) Which of the following can be predicted using the activity series? (4 points)
Speed of an acid-base reaction
Speed of a double replacement reaction
Possibility of a double replacement reaction
Possibility of a single replacement reaction

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .