Complete the hypothesis below to answer the lab question, “What is the effect of immunity on the rate at which a disease spreads?”
Hypothesis: If a higher percentage of people are immune to a disease, then . . .
the rate at which the disease spreads will decrease.
because . . .
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the immune individuals act as a barrier, limiting the spread of the disease to susceptible individuals. Additionally, with a higher percentage of immune individuals, there are fewer potential hosts for the disease to infect, thereby slowing down the rate of transmission.
1 answer