CAIE A Level Biology 9700 · Immunity
Table 1 shows four types of immunity.
| Type of immunity | How it is acquired | Example |
|---|---|---|
| Active natural | ||
| Active artificial | ||
| Passive natural | ||
| Passive artificial |
Describe how each type of immunity is acquired and give one example for each.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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