There are many disease that do not infect a person more than once, such as chicken pox and measles. What is responsible for this lifetime immunity? a. The innate immune response, because barriers to entering the body improve with age.
b. The innate immune response, because adults have more white blood cells than children.
c. The acquired immune response, because antibodies are developed from previous infections.
d. The acquired immune response, because it responds rapidly to broad classes of pathogens.

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

this is a good question! i'll do some research and come back when i have the answer!

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