The idea that sporophyte and gametophyte generations follow one another in a plant's life cycle is called
a. gamete and spore
b. haploid and diploid
c. alternation of generations

Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.