Answer: A milestone
Explanation:
Based on the information given in the question, the answer is a milestone. A milestone simply tells the author that the work is gradually prigressing.
It is a finding which shows that a particular aim in the research plan has been achieved. Therefore, the correct option to the above question is D
CO2 from the blood is released from the blood cells into the alveoli for exhalation while O2 from the alveoli is received into the blood cells to deliver oxygen to other parts of the body
Answer:
c
Explanation:
because I know and said so
HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
