1. rhesus factor-a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia. Rh, Rh factor.. rhesus factor-a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia. Rh, Rh factor.
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Physiological response to pruning in woody plants Plants respond to pruning in a variety of ways that relate to the amount and kinds of growth that are removed from the plant. In general: PRUNING IS A GROWTH RETARDING PROCESS. This means that the more you prune something the less it will grow (figure 2).