For each of the following cofactors, list the enzymes of glycolysis, gluconeogenesis. acetyl-coa synthesis or the citric acid cycle that utilize that cofactor and describe the function of each cofactor in the catalyzed reaction. (a) nad^+/nadh (b) fad/fadh_2 (c) coa (d) thiamine (e) biotin

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.