Entre los deportistas es frecuente la creencia de que cuanto mayor sea el tiempo o la intensidad del entrenamiento, mayor es el rendimiento. Sin embargo, a veces, el resultado es el contrario y se instala una bajada de rendimiento debida al exceso de entrenamiento, conocida como síndrome de sobreentrenamiento. El entrenamiento excesivo y de alta intensidad se vincula con anomalías del sistema nervioso simpático, a los deportistas de resistencia se les vincula con el parasimpático ¿Cómo crees que pasa esto?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper