Question

how does the section \fertilizer for the brain\ contribute to the central idea of the article? (a) by highlighting the function of bdnf (b) by describing how bdnf affects our mental ability (c) by describing how brain function lessens in adults (d) by showing how certain exercises help maintain bdnf levels select the sentence from the section \blood flow and brain function\ that is least important to include in the sections summary. (a) the brain is made up of cells called neurons, which are connected to each other by links called synapses. (b) cotmans work has shown that in older rodents, exercise increases the number of synapses and stimulates the brain to develop more neurons. (c) exercise also increases the release of neurotransmitters, chemicals that relay signals between neurons, said romain meeusen, a researcher at the university of brussels. (d) increasing blood flow is one more way that exercise can improve brain function. why does the author choose to include the following paragraph in the section \exercise in lifes three key stages\? additionally, adults who exercised showed less accumulation of the beta amyloid plaque. the beta amyloid plaque is a protein that builds up in the brains of people with alzheimers disease. alzheimers is a disease that mostly affects older adults and is marked by the loss of memory and mental function. (a) to show that alzheimers is associated with memory loss and mental function (b) to highlight the relation between beta amyloid plaque and alzheimers (c) to show that alzheimers disease can be checked through exercise (d) to highlight that alzheimers disease is associated with adults only which of the following does the article use to highlight the effect of exercise on the brain in adults? (a) an experiment involving rodents (b) a mention of lise eliots book \pink brain, blue brain\ (c) a description of how exercise improves neural circuits (d) an experiment testing the cognitive functions of the brain

Explanation:

1. El apartado "Fertilizador para el cerebro" probablemente enfatiza cómo BDNF afecta nuestra capacidad mental, ya que BDNF es un factor que influye en el cerebro.
2. En la sección "Flujo sanguíneo y función cerebral", la descripción básica de las neuronas (opción A) es menos crucial para el resumen que las afirmaciones sobre cómo el ejercicio afecta la función cerebral.
3. Al incluir la información sobre la beta - amiloide en la sección "Ejercicio en las tres etapas clave de la vida", el autor probablemente quiere resaltar la relación entre la beta - amiloide y la enfermedad de Alzheimer.
4. El artículo probablemente utiliza una descripción de cómo el ejercicio mejora los circuitos neuronales para resaltar el efecto del ejercicio en el cerebro de los adultos.

Answer:

1. B. by describing how BDNF affects our mental ability
2. A. The brain is made up of cells called neurons, which are connected to each other by links called synapses.
3. B. to highlight the relation between beta amyloid plaque and Alzheimer's
4. C. a description of how exercise improves neural circuits