Is it possible to make muscles denser/tighter/thicker without making more muscle

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

What are the components of an effective weight-training program? a. conditioning, progression, generalization, overwork, balance, and recovery b. overload, progression, specificity, regularity, recovery, balance, and variety c. overwork, coordination, motivation, conditioning, regularity, and variety d. consistency, progression, rest, regression, balance, and specificity