If you can't take your heart rate , a good way to recognize that your're exercising efficiently is whether or not

What is the difference between a joint and a fault? a)a joint is formed by confining pressure. b)a joint is formed by differential stress but a fault is not. c)a fault is formed by tension but a joint is formed by compression. d)a fault displaces the rocks on one side relative to another.

Does anyone know how to dissect a frog or baby squid?

Which diseases are drug abusers particularly susceptible to