... termed "hypotonic," meaning less solids (or more diluted) than inside the cell. For fluid movement in/out of cells, water will diffuse (via osmosis) from the hypotonic solution to the hypertonic one, assuming a permeable barrier (i.e. cell membrane) allows it. With this case, water will flow into the cell from outside.
In some reactions, a single-reactant substrate is broken down into multiple products.
Answer:
Karyogram of a male with Down syndrome.
One of the species dieing off.