<span>When the Moon is directly between the Sun and Earth, a spring tide will occur along a shoreline that is facing the Moon.
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They are called stem cells. This cells are undifferentiated which means it can specialize in other types when it receives the right stimuli. They can divide through mitoses and become more stem cell or become a bone, muscle, blood cell, etc.
They can have 2 origins: embryos or some human tissue; their function is to regenerate or substitute damaged cells
I pretty sure that 3 is b and 4 is A and 5 I need a full picture
Do u know Chinese ?if yes I can explain to u easily
No, not exactly. They jiggle and tremble and vibrate a lot, but
they always basically stay in very nearly the same place.
It's like if you're allowed to go anywhere you want in your jail cell,
you wouldn't exactly call that "moving about freely".
