Why is tissue typing necessary before a kidney transplant?
to determine the compatibility of the blood types of donor and recipient
to determine the compatibility of the organs of donor and recipient
to determine the compatibility of antibodies of donor and recipient
to determine the compatibility of the blood vessels of donor and recipient

the eggs of the insects should be the first thing collected at the scene.

false

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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.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%