MCB3020C TOP Exam Questions And CORRECT Answers
What is cytoplasm? Aqueous mixture of macromolecules, various inorganic ions, and ribosomes. Types of macromolecules Proteins, lipids, nucleic acids, and polysaccharides What are ribosomes? The cell's protein-synthesizing structures How old is the Earth? 4.6 billion years old When did the microbial cells appear? Between 3.8-3.9 billion years ago During the first 2billion years the Earth's atmosphere was______. Meaning that ______ was absent. anoxi
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