It’s b the pine tree has unprotected seeds, the apple tree has seeds in fruits
<span>As the pollen tube penetrates the ovule, it releases two sperm cells. As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization.</span>
A. they tend to be unspecialized.
Answer:
I believe the answer you are looking for is the Lithosphere
This procedure is called In Vitro Fertilization (IVF)
