According to Esaias, the changes aren’t just dramatic, they’re also kind of scary. The fertility of most flowering plants, including nearly all fruits and vegetables, depends on animal-mediated pollination. As the pollinators move from flower to flower for nectar--a high-energy, sugary enticement—the plants dust them with pollen, which the animals transfer from flower to flower.
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Plant development is seeded in the perspective that a cell divides itself to form a tissue and tissues grouped will become an organ and the organism itself. The cell hierarchial model is followed in the development in both of these diverse however seemingly similar organisms. </span>
Because for men, the gene is dominant, and for women, it is recessive, thus a man only requires one allele for baldness to occur, and a woman must be homozygous for the trait.
You're right, it is D.
A theory can be changed if evidence is found that contradicts the current theory.