Answer: An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of 13 amu.
Explanation :
As we are give that,
Number of protons = 7
Number of electrons = 7
Number of neutrons = 6
As we know that,
Atomic number =Number of protons = Number of electrons = 7
Atomic mass = Number of neutrons + Atomic number
Atomic mass = 6 + 7 = 13 amu
Therefore, the atomic mass is, 13 amu
Explanation:
The nucleus holds strands of DNA that stores the genetic material
The answer is DNA
Answer:
nucleus
Explanation:
the nucleus is the control centre of cell
It is not c or d. I think it is a.
Answer:
Pulmonary artery
Explanation:
The pulmonary artery delivers oxygen poor blood to the lungs that comes from the right ventricle of the heart. The pulmonary artery is also the only artery in the body that carries unoxugenated blood. When the blood goes to the lungs, it picks up oxygen and drops off carbon dioxide to be expelled from the body. The pulmonary vein then takes the oxygen-rich blood and brings it back to the heart.