<span>Helium has an atomic number of two, so its outer energy level is full. Helium is considered INERT.
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Answer:
B. Kidney
Explanation:
The kidneys play a central role in the regulation of arterial blood pressure. A large body of experimental and physiological evidence indicates that renal control of extracellular volume and renal perfusion pressure are closely involved in maintaining the arterial circulation and blood pressure
Answer:
If it's triangles on one side it's a cold front
If it's a red line with semi circles then it's a warm front.
The answer is B: Response to stimuli
what response to stimuli means is that the organism reacts to something around it
the venus flytrap wouldn't just randomly close for no reason
it had to sense the fly, and react by closing.
it's not permeability because permeability means allowing things to pass through like soaking up water
unless your teacher is referring to absorbing the nutrients of the dead fly after it's been killed
but I don't think that's what this question is about
:)
