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☆☆☆☆☆mitosis
Organs are made up of small cells instead of large cells to allow the organs to be not easily harmed. This way if one cell dies or is attacked then the organ will not be damaged. If the cell was larger then the organ might not be able to recover.
The first organ to develop in the embryo is the heart. In a fetus, there is a brain, but it isn't fully developed and can't understand signals from the nervous system. Therefore the first functional organ would be the heart. But the first thing to start developing in a fetus is the nervous system. ( no that isn't an organ )
Spontaneous generation does not happen.
they are pluripotent
|APEX|
They can become more cells than adult stem cells can.
the man is twenty thousand
(2x10 exponent 4) times
larger than the paramecium
Multipotent
0.6 is the surface area to volume ratio.
in multicellular organisms like humans hundredes of metabolic activities take place so we require many cells performing diferent functions.we also require cells to build up our body .
by sending and detecting chemical messages APEX
They can become more cells than adult stem cells can.
They all Contain DNA
It is very selective about what it allows to pass through.
