Ehrlich and raven hypothesized that if a new defensive trait evolves in a single plant species (or if a new trait to counteract a plant's defenses evolves in an herbivore species) the appearance of that trait could result in a period of species diversification. their hypothesis is also referred to as the hypothesis.
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Ehrlich and raven hypothesized that if a new defensive trait evolves in a single plant species (or i...
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