Ive had these questions in uni physiology, i have no systematic way to go about it really, i've just done it through all memory brute force. The idea that sympathetic = fight and flight/turning things up and parasympathetic = rest and digest/turning things down fails as a method at a certain stage.
Just to add to this, I remember the difference between sympathetic and parasympathetic as follows:
sympathetic- the body is feeling 'sympathetic' for the individual's current situation (e.g. something dangerous) and therefore wants to help out.
parasympathetic- the opposite. I kinda personify the parasympathetic response as a stereotypical hippie. ahaha
For all the different methods of radioisotope dating would this be sufficient (for the age of objects which can be dated by them)
1.) Carbon-14 : objects up to 60,000 years old
2.) Uranium-235: objects over 500,000 years old
3.) Potassium-40: objects over 500,000 years old
4) Rubidium-87: objects over 100 million years old
I seem to find different values (for how old objects can dated with these different methods ) in different sources... o.O
Look through examiner's reports for the exact dates. If you can't find them, then refer to NOB because that's the most common textbook I believe
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