Organelles help keep the cell alive.They are surrounded by membranes.Each type of organelle has a specific function that helps the cell.Several kinds of organelles are suspended in the cytoplasm. Organs help pump blood to all parts of your body.
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If a keystone species is removed the whole ecosystem will collapse because it relies on that one species.
according to criteria such as salinity, depth, and whether the water is flowing or standing
Question 1 is false and question 2 is A
<u>Pressure increases with depth </u>
Explanation:
Pressure increases with depth because the molecules at the deeper end are compressed by the weight of the above column of the fluid. Compression means there are more molecules of the fluid per volume in the deepest place than the surface. More molecules mean more pressure.
This is why divers need special gear when diving deep in the ocean to protect themselves form increased water pressure. In addition, the lowest atmospheric layers have the highest pressure because they are more dense and bear the weight of the above air column. This is why air pressure is a bit lower up the summit of a mountain than at its base.
