The process of red blood cell production is called
A) erythrocytosis.
B) erythropenia.
C) hemocytosis.
D) erythropoiesis.
E) hematopenia.
Question 2
The nutrients that yield the most energy per gram when metabolized are
A) carbohydrates.
B) proteins.
C) fats.
D) nucleic acids.
E) vitamins.