In a paragraph, summarize how immunizations can prevent certain diseases. (site 1)

What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination

This is so important ugh its 25 points

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere