1
The branch of biology concerned with the relations between organisms and their environment. bionomics, ecology.
2
An evolutionary theory that explains the origin of eukaryotic cells from prokaryotes.
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A chemical reaction in which the standard change in free energy is positive, and energy is absorbed
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The independent evolution of similar traits, starting from a similar ancestral condition.
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The study of the chemical elements and compounds necessary for plant growth, plant metabolism and their external supply.
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Plant pathology is the science of diagnosing and managing plant diseases.
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The ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and some sub-surface layers.
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The act of transferring pollen grains from the male anther of a flower to the female stigma.
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an organelle that is the main place where cell microtubules get organized. They occur only in plant and animal cells.
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An organelle formed from a centriole, and a short cylindrical array of microtubules.
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The centroid of a triangle is the intersection of the three medians of the triangle (each median connecting a vertex with the midpoint of the opposite side).
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A gene whose individual effect on a phenotype is too small to be observed, but which can act together with others to produce observable variation.
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Contraction of the protoplast of a plant cell as a result of loss of water from the cell.
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A large molecule, or macromolecule, composed of many repeated subunits.
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A harmless pill, medicine, or procedure prescribed more for the psychological benefit to the patient than for any physiological effect.
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The study of plants.
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