Atoms, Molecules, Cells, Tissues, Organs, Organ system are all building blocks to growing an organism. Hope this helps. :)
A stem-cell niche is an area of a tissue that provides a specific micro-environment, in which stem cells are present in an undifferentiated and self-renewable state.
Answer:
C
Explanation:
A catalyst is a substance added into a chemical reaction, that aids in the increase of the chemical reaction without the catalysts undergoing any chemical reaction. Thus the catalyst and the beginning of the reaction (reactant) is the unchanged at the end of the reaction (products).
Answer:
greater
Explanation:
the shortest DNA fragments travel greater distances than the longest DNA fragments.
Answer:
Earthquakes are usually caused when underground rock suddenly breaks and there is rapid motion along a fault. This sudden release of energy causes the seismic waves that make the ground shake. The earthquake starts at the focus, with slip continuing along the fault. The earthquake is over when the fault stops moving.
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