Which answer best indicates the dynamic balance of an ecosystem?
space and food vs. temperature and water
number of plants vs. number of animals
number and variety of organisms vs. changing environment
number of organisms vs. constant environment

List two modern organisms that have pentameral symmetry

Are the earth's ocean floor and continents the same age geologically? why or why not?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis