100%. But I do want to note for those in the back seats, matrotrophy and integumentation (basically, egglike gametes/ gametophytes) evolved multiple times and independently in other lineages, like plants. So even though plants follow the same “sperm and egg” pattern, its evolution is wholly independent. Turns out investing in the next generation is a broadly advantageous evolutionary strategy.
100%. But I do want to note for those in the back seats, matrotrophy and integumentation (basically, egglike gametes/ gametophytes) evolved multiple times and independently in other lineages, like plants. So even though plants follow the same “sperm and egg” pattern, its evolution is wholly independent. Turns out investing in the next generation is a broadly advantageous evolutionary strategy.