It's called muscle spasticity. Or in common terms, muscle cramp.
Hope this helps.
<span>How does a change in temperature affect the stomata of a plant?
This one you could set up an experiment with different temperatures with different plants and see if the stomata change.
A and D are just facts and B is an opinion
Hope that helps</span>
So A matches with U and C matches
With G. If you need more
Help then go to comments