Help I need help QUIZ brain list 15 Which of the following statements is true?

Elements in the same group have the same number of electrons.

Seasons are caused by Earth's revolution and tilted axis.

Bases have pH values between 0 and 7.

Protons and electrons are found in the nucleus of an atom.

The higher the proportion of loci that are "fixed" in a population, the lower is that population'sa) nucleotide variability only.b) genetic polyploidy only.c) average heterozygosity only.d) nucleotide variability, average heterozygosity, and genetic polyploidy.e) nucleotide variability and average heterozygosity only.