Where is the thyroid gland located?
a. neck
b. lungs
c. esophagus
d. gallbladder

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms

What is the next step in the process after a substrate enters the active site of an enzyme