Which elements form ions that are usually colored in solid compounds and in solution.

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.

Darwin studied two different types of tortoises on the galapagos islands. sort the characteristics based on which tortoise they describe.

Which specimen would best be viewed using a compound light microscope?