Which particle of an atom has the least mass?
proton, nucleus, neutron, electron?

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

What molecule does hemoglobin decay into over time

Why should organisms reproduce more offspring than will survive? select all that apply.