What are the stages of meiosis in eukaryotic cells with realizing that there are two cell divisions involved?

Look at the picture below . what does this picture represent ?

What molecules does hemoglobin decay into over time

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons