Answer:
e I think. Let me know if I got it wrong!
Answer:
I would say Option B
Explanation:
A controlled experiment is where you have two or more independent variables, that way you have an experiment to compare results with.
Answer: In the case of antibiotic resistance, antibiotics cause a selective pressure by killing susceptible bacteria, allowing antibiotic-resistant bacteria to survive and multiply. Selection pressure can be regarded as a force that causes a particular organism to evolve in a certain direction.
Explanation:
Answer:
Algae, Ammonium, Human Waste.
Explanation: