17. Scientists analyzed data about Vesuvius in the same way that a zoologist a specimen. A. describes in detail
B. studies by cutting apart
C. photographs
D. chart
E answer not available​

Which statement is true about ionic compounds?

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Identify and describe the three ways that mutations affect organisms.