Which best describes the nucleus of an atom? a. it is where the electrons and protons are located. b. it is the negatively charged part of the atomc. it is the part f the atom with the greatest massd. it is where all of the particles of the atom are located

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

What are the types of mutations, and how does each alter the encoded protein? college level answer

What type of genetic drift would be simulated if all the beans that were not selected died out?