Which Scientist first explained about circulatory system? A. William Harvey B. John Nicholson C. Robert Hooke D. Theoder schwann 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostWhich cells have least regeneration capacity? Next PostIn which cell organelle do photo and thermochemical reactions occur in different sites? If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply