Answer:
Cell membrane and vacuole
Explanation:
Endocytosis is a process that occur in living cells in which substances are engulf in to the cells through the membrane to form vacuole. This occur when the cell membrane engulf materials into the cell and form vessicles called endosome and it move round the cell where it is digested.
A reproductive barrier keeps similar species from interbreeding.
Relative dating to determine the age of rocks and fossils. Geologists have established a set of principles that can be applied to sedimentary and volcanicrocks that are exposed at the Earth's surface to determine the relative agesof geological events preserved in therock record.
Answer:
Those that are able to acquire their food and shelter needs in order to survive and reproduce.
Explanation:
