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Psychology Question
I encountered a question about a moderator or a moderating variable, something I had not been exposed to before. I just want to make sure my understanding of a moderating variable is correct. In observational studies we have dependent variable and independent variables and a moderating variable is a separate variable that…
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I don't know how to find an electrochemical's cell reduction potential.
I picked B because I learned for example 1 (on the right) that if we're given 2 reduction half reactions, we could get the oxidized half reaction's reduction potential by subtracting it. Thus, for B, I did "1.78V -(-0.32V)". Why am I wrong? Thank you!
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Are all switches resistors? Why does the switch's orientation affect L (resistor length)?
According to the equation on the right, L = the resistor's length. However, I looked at the diagram and saw no schematic symbol for resistors . From the explanation, I get the hunch that the switch is a resistor, but I still don't understand how L increased. Initially the switch was disconnected but present. After the…
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Biology Question
If lizards also lower their metabolic rate, how can we not contribute that as a way that they lower their body temperature?
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Sympathetic System
Something that has always confused me is vasoconstriction vs vasodilation and what that means for blood pressure, blood volume, etc… Also, does vasoconstriction or vasodilation happen under sympathetic activation and for what reason?
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Question about Reasoning
So this explanation, particularly the first part, is exactly what I thought about when making my prediction. I said yes because of the fact that theory is in use today, so it would have to include yes. My question is if this is valid in general. If I know a theory or something is relatively accepted (except when talking…
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Kidney/Parasympathetic/Bladder question
For a long time I thought that the parasympathetic nervous system increasing contraction of the bladder meant that urination would occur less frequently. After reading about the bladder I want to make sure I get this straight. When the bladder is full a signal is sent that increases parasympathetic activation. This…
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Which is the best mcat course to start with?
This is my first time to take the mcat test, have not booked a date yet until I am prepared fully. Pls advise.