How are the testes and the ovaries similar

What best describes lactic acid fermentation?

What makes a dominant allele different from a recessive allele

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