Energy flows through an ecosystem.
hope this helps :)
<em>by definition- a stem cell is an undifferentiated cell of a multi-cellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.</em>
an example
Stem cells have the potential to be whatever they want to be. Stem cells are able to develop into many different types of cells and can repair your body.
there are two types
adult stem cells and embryonic stem cells
B) cytosine is found in both dna and rna
<span>Cohesin holds the sister chromatids together after DNA replication, and removal of cohesin leads to separation of the sister chromatids.
Securin is part of the metaphase-anaphase transition and anaphase onset and is required to ensure that separase is folded properly.
Since Securin must be degraded for anaphase and the subsequence degradation of cohesin to occur, it must be dephosphorylated just prior to anaphase.</span>