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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.
3 A chemical reaction in which the standard change in free energy is positive, and energy is absorbed
4 The independent evolution of similar traits, starting from a similar ancestral condition.
5 The study of the chemical elements and compounds necessary for plant growth, plant metabolism and their external supply.
6 Plant pathology is the science of diagnosing and managing plant diseases.
7 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.
8 The act of transferring pollen grains from the male anther of a flower to the female stigma.
9 an organelle that is the main place where cell microtubules get organized. They occur only in plant and animal cells.
10 An organelle formed from a centriole, and a short cylindrical array of microtubules.
11 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).
12 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.
13 Contraction of the protoplast of a plant cell as a result of loss of water from the cell.
14 A large molecule, or macromolecule, composed of many repeated subunits.
15 A harmless pill, medicine, or procedure prescribed more for the psychological benefit to the patient than for any physiological effect.
16 The study of plants.
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