Question

which of the following elements do all sexual life cycles in eukaryotic organisms have in common?
o alternation of generations, meiosis, and gametes
o meiosis, fertilization, and gametes
o alternation of generations, gametes, and spores
o spores, fertilization, and gametes

Explanation:

All sexual life cycles in eukaryotic organisms involve meiosis (to produce haploid cells), fertilization (to restore the diploid state), and gametes (which are haploid cells that fuse during fertilization). Alternation of generations is not present in all sexual life cycles (e.g., animals do not have a prominent alternation of generations). Spores are also not a part of all sexual life cycles (again, animals typically do not produce spores in their sexual life cycle).

Answer:

meiosis, fertilization, and gametes