Se realizó un experimento con una rana, cuya actividad cerebral fue bloqueada por medio de una droga, dejando activa solamente la médula espinal. Se aplicó una serie de estímulos y se comprobó
que el animal respondía de manera refleja. A partir de la información entregada, ¿cuál de las
siguientes preguntas corresponde al problema investigado? (1 punto)
a) ¿Cuál es el efecto de las drogas en el cerebro?
B) ¿Qué tipo de reflejo produce una respuesta más rápida?
C) ¿Cuál es el efecto de las drogas sobre la médula espinal?
D) ¿Qué papel cumple la médula espinal en la elaboración de respuestas reflejas?
Ayudenme porfa<3

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?