WHAT IF? Parasitic wasps inject their eggs into hostlarvae of other insects. If the host immune system doesn’tkill the wasp egg, the egg hatches and the wasp larvadevours the host larva as food. Why can some insectspecies initiate an innate immune response to a waspegg, but others cannot?

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Q: Suggest reasons why developing a safe and effective vaccine usually takes many years.

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A:

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Q: Do not use chatgpt

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