To be able to compare the results to a sample without any of the independent variable added.
Answer:
Theodor Schwann and Matthias Jakob Schleiden
Explanation:
- A cotton ball dampened with sterile normal saline is placed on the field
- A nurse turns to address the patient's question concerning the procedure
- The procedure is postponed for 30 minutes to accommodate the patient
Hope this helps :)
Answer:
An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water.