The first level of the myactivity pyramid is reserved for
a. rest.
b. strength training or stretching.
c. aerobic activity.
d. everyday activities.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.

answer; a database is an organized collection of data in digital format that users to keep track of information;

answer (c) by causing social withdrawal;

you actually cant delete a question, you can only edit the question to say you do'nt need anymore or just wait 2 weeks and it'll be deleted by/p>