Which of these is an example of active immunity? a. a pregnant woman passing antibodies to the fetus across the placenta b. a pregnant woman giving antibodies to an infant through breast milk c. a person developing antibodies against the measles vaccine d. a person receiving antibody shots after being bitten by a rabid animal

a person developing antibodies against measles vaccine

Explanation:

passive immunity

Explanation:

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explanation:

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: