Scientists have been studying various species of brown frogs that live on the Greek islands. The frogs are very similar in appearance. One species of brown frog spread to the islands over five million years ago when the basin between them was dry. The basin re-flooded and the frogs became separated by salt water. Today different species of these frogs live on different islands. These species of frog are very similar but have unique characteristics such as differences in body size, size of the pads on their feet, and coloring. Which of the following best explains these differences

cell regulation is conducted by special proteins.

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.

hello, ballerbaby1265. i would say that the child has had a concussion due to the fall and their symptoms. 60 beats per minute is normal in a child that is sleeping, but not while awake. two of the main symptoms of a concussion after are both sleepiness and being tired. i hope i have a great night.