Hello there,
Food,water,living space and disease examples of <u><em>The density dependent factors.</em></u>
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Pollination occurs when pollen grains from the anther land on a stigma. After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary. Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules.
The second answer is b. third answer is c