Fruits may have features that help aid seed dispersal

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Unformatted text preview: tiple seeds (as in a pea pod). • Fruits may have features that help aid seed dispersal such as tasty flesh, spines, parachute-like features, flotation devices, ore explosive fruits. • A seed contains and embryonic plant and food (endosperm) to nourish the plant until it can photosynthesize. Endosperm may be starchy or oily. In dicots, both cotyledons contain endosperm. In monocots, the endosperm and the cotyledon are separate. Common misconceptions: • Kitchen definitions of “fruit” and “vegetable” are different from scientific definitions. In the kitchen, sweet things that can be made into desserts are termed “fruits,” while “vegetables” are plant parts that we eat that are not sweet.” In science, a “fruit” is a mature plant ovary containing seeds, while “vegetable” has no real meaning in science except to refer to plants in general (such as the old-fashioned term “the vegetable kingdom”). According to the scientific definition of “fruit,” all of the following are fruits: pea pods, green beans, cucumbers, pumpkins, zucchini, sunflower seeds, nuts, tomatoes, chili peppers. Rhubarb, however, is not a fruit. • Many people have a very limited idea of what flowering plants are. “Flower” refers to the reproductive parts of flowering plants containing anthers, carpels, or both, and aren’t always showy and pretty. All of the following are flowering plants: grass, most broadleaf trees (except ginkgoes), rushes, sedges. • Some students confuse pollination with fruit dispersal. Both may involve animals, but one is the process of moving pollen from one flower to another, while the other is scattering of mature fruits away from the parent plant. Reading notes: • Define: m...
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This document was uploaded on 02/25/2014 for the course BIOLOGY 103 at Western Oregon University.

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