Biodiversity refers to the different kinds of living things in an area. The bar graph below compares the diversity of insects in four ecosystems. Which ecosystem would likely have the most survivors after a farmer applies a new insect poison to crops grown nearby?

that's what i got you can count the number of atoms

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.