Active transport means the molecules move against a concentration gradient from areas of lower concentration to areas of higher concentration.
Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
Explanation:
I do believe that it is C. crossing over :) I hope that is correct, it seems like the only plausible answer.
Answer:
C
Explanation:
The cell wall in only present in plant cells, not animal cells. Hence, the fact that plant cells are rectangular while animal cells are more circular.
