The locations of molecules a and b at the beginning of the experiment are shown. which statement best describes what was observed when the setup was examined 20 minutes later?
1. molecule a remained inside the artificial cell and molecule b remained outside. 2. only molecule a was found both inside and outside the artificial cell.
3. only molecule b was found both inside and outside the artificial cell.
4. both molecules a and b were found inside and outside the artificial cell.

3. Only molecule B was found both inside and outside the artificial cell.

Explanation:

-  Molecule A is smaller than molecule B.

-  Molecule B has an electrical charge.

-  They could be different sizes.

-  size of the molecule

-  One is a sugar or monosaccharide and the other is a starch or polysaccharide.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

the titanic would be the correct answer