Organisms in kingdom archaebacteria live in environments that are very hot or very cold. which other characteristic is common to organisms in this kingdom? a. they are viruses. b. they are green. c. they live without oxygen. d. they are multi-cellular.

I'd say the answer is C.

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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.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.