Answer:
Hello. You did not put the answer options, but the role of moss in the transition to stage III is the creation of protonemes where the gametes that will act in stage III will be formed.
Explanation:
Stage III consists of the fertilization of the female gamete of the moss with the male gamete of another moss, thus creating a zygote that will give rise to other mosses in the future.
Moss is very important for this phase, because it will be responsible for creating a structure called protonemas. In the protonemas are the gametophytes that will have a structure called gametangium that will allow the formation of gametes.
Answer: when the death rate is equal to the birth rate the population growth is zero that means there is no increase and decrease of population in that particular year.
