He diagram below represents part of the oxygen cycle. which arrow, or series of arrows, represent the movement of atmospheric oxygen (o2 ) during respiration? a. only arrow 2 b. only arrows 2 and 6 c. only arrows 1 and 6 d. only arrow 6

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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.

anthropod traits:

a well-developed collarbone

rotating shoulder joints

partially rotating elbow joints

opposable thumb

similar dental formula

answeramino acids;