Farming causes a chain reaction: farmers supply crops/meats to distributors, distributors sell crops/meats in bulk to grocery stores, and those in the food industry can obtain their produce through the mentioned grocers. Restaurants rely on grocers, who rely on distributors, who rely on farmers.
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By knocking out genes responsible for certain conditions it is possible to create animal model organisms of human diseases. As well as producing hormones, vaccines and other drugs , genetic engineering has the potential to cure genetic diseases through gene therapy.
Explanation:
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Answer: Sex cell is the correct answer.
If an inherited behavior allows an animal to survive and reproduce, the behavior can spread ... Many animals respond to the cycles in the environment with daily or seasonal cycles of behavior. Hope that helps