Answer:
they could create bad bacteria and are harder to kill this is called bacterial resistance or antibiotic resistance.
Explanation:
Blood vessels, ligaments, muscles, and skin pigment.
Answer:
Active transport: movement against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the proper concentrations of ions and molecules in living cells.
