people who are lactose intolerant lack the lactase enzyme. they often experience digestive problems when they eat dairy products. do the results of demetri’s support this scenario? explain your response.

i believe the answer would be b. hope it : )

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.