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Matematika 6! + 8! + 9! - 3!! + 8!!!
✎MemakaiCara ☑︎
gregorialemkeulv
– April 04, 2023
Biologi 4. Figure 1 shows the graph of concentration of antibody in the blood (%) over a period of 40 days. Based on the graph, answer the following questions. (a) Explain the reaction of the body against the infection of virus A. (b) How long does it take for the body to build antibodies to reach the immunity level after an infection? Photograph 1 (c) Give one reason why the antibody level drops after reaching the immunity level. Concentration of antibody in blood (%) Exposed to virus A Immunit level 0 5 10 15 20 25 30 35 40 Figure 1 Time (day)
gregorialemkeulv
– April 02, 2023
Matematika (6 per p⁴ : 3 per p⁴)²
gregorialemkeulv
– April 02, 2023