LLega un paciente a una sala de urgencias, luego de un accidente de tránsito, con politraumatismos y una importante hemorragia intra-abdominal, la cual requiere de manera urgente una transfusión de sangre. Se le informa de dicha situación al paciente, que está consciente. El mismo paciente manifiesta ser testigo de Jehová y que por tal motivo, no acepta el tratamiento ofrecido (transfusión). ¿Que deberían hacer los médicos?

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

protistas excret ethanol used in the manufacture of vinegar