True or false movement of molecules along the concentration gradient is called diffusion

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?