In ferns, the plant structure that produces sperm and egg cells is known as which of the following? a. sporophyte b. spores c. zygote d. gametophyte

D. Gametophyte

How I remember this is that

“Gemtophyte produces gametes”
“Sporophyte produces spores”

During the cell cycle, specifically G1 interphase, a cell must reach a sufficient size and produce enough ATP in order to produce two daughter cells. The energy inherent in ATP molecules are needed to accomplish this stage of the cell division. This replication is neccessary for the advancement of the cell division.