Answer:
amoeba made up one of the only cells.
There are less trees and plants to absorb CO2 (carbon dioxide) and convert it to oxygen.
Answer:
Explanation:
They have a much higher range of magnification (can detect smaller structures)
They have a much higher resolution (can provide clearer and more detailed images)
hope that help you
Answer:
B.
Explanation:
The dependant variable is the one being tested
Enzymes - particularly proteases. These break down protein in the stomach in the presence of low pH (acidic material eg stomach acid).
In addition to this, there are many bad bacteria that cause illnesses such as E. Coli or <span>Helicobacter Pylori </span>