Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?
A B C D
They became nerve cells. They became red blood cells. They became bone cells. They became skin cells.
Question: Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?
(A) They became nerve cells.
(B) They became red blood cells.
(C) They became bone cells.
(D) They became skin cells.

Answer: (C) They became bone cells.
Answer: (B) They became red blood cells.
Question: Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?
(A) They became nerve cells.
(B) They became red blood cells.
(C) They became bone cells.
(D) They became skin cells.
Answer: (C) They became bone cells.