The answer is B, During the process of protein synthesis tRNA carries an amino acid
Hemoglobin serves as a chemical messenger
Answer:
These observations led two German scientists, named Theodor Schwann and Matthias Jakob Schleiden, to propose that cells are the basic building blocks of all living things. Around 1850, a German doctor named Rudolf Virchow was studying cells under a microscope when he happened to see them dividing and forming new cells
Explanation: