2. 12 students working for 5 hours a day can solve a certain number of problems in 8 days. How many students are needed to solve five time the original number of problems, if they work at 4 day for 15 days?
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Fertilization can be defined as the union of two haploid gametes, the spermatozoa and the oocyte, hereto referred to as egg, to restore the diploid state, form a zygote through the process of egg activation, and commence a series of mitotic divisions that results in cell differentiation and embryo development.
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