Because they take up too much space and by modern standards are very inefficient. Far better alternatives to the 1860's version are now available.
Memory cells live longer than effector cells and are responsible for the secondary immune response
Cells that no longer divide are called senescent cells. Senescence occurs when the telomeres found in the DNA of organisms become too short.
simple columnar epithelium.
They can no longer replicate (reproduce).
Plant cells use photosynthesis through the use of chloroplasts.
Emma dated Daniel for about a year.But they are no longer together.
No.
Brain cells
Brain cells
They were at one point, but as they grow they differentiate and can no longer be counted as stem cells.
Daniel Briere is no longer a member of the Buffalo Sabres. He is now a member of the Philadelphia Flyers.
Yes he has. They are no longer dating.
Yes she did.But,I believe they are no longer together.
Memory cells live longer than effector cells and are responsible for the secondary immune response
Cells which are no longer dividing and remain in the G0 phase are called post-mitotic or quiescent.
Please write a longer question. Cells in a body? Cells in a prison? Tell us more.
They used to.But I believe they are no longer together.