Speed is largely determined by heredity. Which of the following skeletal muscle type is responsible for speed? *
Fast Twitch Muscle
Slow Twitch Muscles
Cardiac Muscles

Identify two ethical principles that can teens deal with difficult decisions

Which of the following supports the argument that viruses are nonliving? a) they are not cellular.b) their dna does not encode proteins.c) they have rna rather than dna.d) they do not evolve.

Building muscle has which of the following effects? it increases the metabolic rate. it relieves pressure on the joints. it slows weight loss considerably.