How many neutrons does this atom of argon have?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?