During a chemical reaction, the number of atoms A stays the same
B increases
C decreases
D fluctuates

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

This is the process of making a prediction based on the results of prior observations of similar events.