What is an energy level? a. The region outside the nucleus where an electron is likely to be moving.
b. The region inside the nucleus where an electron is located.
c. The region outside the nucleus where a proton is likely to be moving.
d. The region outside the nucleus where a neutron is likely to be moving.

What must happen before a body cell can begin mitotic cell division

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit