A. help keep joints flexible
Answer:
Sry, I had the same question.
Explanation:
Answer: b) Petri dishes and sterile droppers is generally used to make lyophilized medications suitable for administering to the patient.
Explanation:
Answer:
Forms of passage of substances across the blood–brain barrier. (A) Passive diffusion: fat-soluble substances dissolve in the cell membrane and cross the barrier (e.g., alcohol, nicotine and caffeine). Water-soluble substances such as penicillin have difficulty in getting through.
