Which is a disease of the respiratory system often caused by smoking?
a) emphysema
b) atherosclerosis
c) idiopathic edema
d) thalassemia

Kyla injures her leg during a rock climbing accident. which type of rehabilitative care would she need after her injury has healed?

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.

Which of the following statements is not true about body composition? a. too much body fat can lead to joint or bone disorders. b. body composition is influenced by numerous factors. c. body composition refers to a person's overall weight. d. lean body mass is the nonfat component of body composition