The diagram shows the life cycle of a fern. Which labels belong in the areas marked 1 and 3?

1 - Zygote
3 - Spores
1 - Spores
3 - Zygote
1 - Sporophyte
3 - Gametophyte
1 - Gametophyte
3 - Sporophyte

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

How does human environment effect the biosphere