Are berries on plants such as hollies comparable to female eggs?
Here is a pedantic, overly technical answer to your question. The berries ARE ovaries (like animals of all kinds may have), and swell up to protect the developing young inside. The young are the seeds, which roughly correspond to babies of animals. A fruit might contain just one egg (young), or many-many. Plants tend to conform to others of their same species for this characteristic. The eggs of a plant are exactly like the eggs of animals (functionally), and so they are the female part of the process. And pollen is like sperm, so it is the male contribution. However, one pollen grain may usually only pollenate one egg, and so a flower that produces many eggs can usually do better if it gets a lot of pollen grains, to produce more seeds. The pollen might just come from one other flower (or even the same flower – but not in hollies), or from many different ones. It is better if it comes from many other flowers of the same species. But in the end – one pollen and one egg can produce one