Explain the difference between percent abundance and relative abundance.
the percent abundance of each isotope tells you how many of each kind of isotope exist one very 100 particles. what does relative abundance tell you?

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.