Pick from:
1). male bushes.
2). an organism's body.
3). in the autumn season.
4). scarce resources.
5). male flowers.
6). female flowers.
7). female bees.
8). peachleaf willow.
Given those answer options, answer the question: Fact 1: Pollination is the fertilization step in the sexual reproduction of plants. Fact 2: Pollen grains are the small male reproductive bodies of plants that fertilize female flowers. Given the two facts above, pollen grains are small male reproductive bodies of plants used to pollinate what?
A:
6).