Which term refers to the combination of two daughter cells during flower fertilization?

The term that refers to the combination of two daughter cells during flower fertilization is fertilization. In the context of flowering plants, fertilization occurs when the male gamete (pollen) combines with the female gamete (egg cell) within the ovule of the flower. This process is essential for the development of seeds and the propagation of the species.

Fertilization results in the formation of a zygote, which is the first cell of the new plant, and ultimately leads to the development of a seed once the ovule matures. Understanding fertilization is crucial because it highlights the reproductive strategy of flowering plants, ensuring genetic diversity and the continuation of plant species.