Question

being able to do more than 12 bicep curls will help improve○ flexibility○ muscular strength○ cardiorespiratory endurance○ muscular endurancequestion 81 ptsto improve muscular strength○ stretch the muscles every day○ work the muscles to near maximal force○ complete an exercise at least 20 times○ run five miles up and down hills

Explanation:

For the first question: Performing more than 12 bicep curls focuses on the muscle's ability to repeatedly contract, which targets muscular endurance rather than strength, flexibility, or cardio endurance.
For Question 8: Muscular strength is improved by challenging muscles with near-maximal force (low reps, high weight), while stretching improves flexibility, high reps build endurance, and hill running targets cardio and some endurance.

Answer:

First question: Muscular endurance
Question 8: Work the muscles to near maximal force