What happens when members from separated populations do not reproduce each other

2 new species evolve over time.

Say you have a group of 100 rabbits that get separated somehow and can't reproduce with each other, the rabbits on side A will become A breed or A species and the rabbits on the B side will become B breed or B species.

Sorry if that doesn't make much sense, i'm not the best at explaining things.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.