because they just don't you dumb B****
for example phloem .... doesnt have a nucleus ... and it needs a nucleus to survive ... thats why they have a companion cell which have a nucleus for them ...if u try to separate the companion cell from the phloem the phloem will die after some time
Prokaryotes,red blood cells of mammals,seive cells of phloem
Phloem cells do not have a nucleus, and they have very few vacuoles. They act much like a sieve.
Mature red blood cells are the only human cells that do not have a nucleus. sorry to do this but that's not the answer but i don't know it
No. Mature red blood cells have neither a nucleus nor chromosomes.
Gjhgy
for example phloem .... doesnt have a nucleus ... and it needs a nucleus to survive ... thats why they have a companion cell which have a nucleus for them ...if u try to separate the companion cell from the phloem the phloem will die after some time
Prokaryotes,red blood cells of mammals,seive cells of phloem
Phloem cells do not have a nucleus, and they have very few vacuoles. They act much like a sieve.
Prokaryotic cells have no nucleus. In the human body, mature erythrocytes (red blood cells) have no nucleus.
It is actually the other way around - mature red blood cells lack a nucleus.
Mature red blood cells are the only human cells that do not have a nucleus. sorry to do this but that's not the answer but i don't know it
No, they are usually living. It is the xylem tissue that is made mostly of dead cells.
erythrocytes
No. Mature red blood cells have neither a nucleus nor chromosomes.
lymphocyte.monocyte ,erythrocyte .neutrophil
Nucleus is an imp component of cell essential for survival . An organised nucleus appears in eukaryotes(except mammalian rbc and sieve tube cells of phloem) for the first time .Prokaryotes have an unorganised nucleus....