Blood pressure by many hormones like ADH , renin etc !
I think that Larger, more complex life-forms can evolve.
The frog's tongue is being anchored in the very front of its mouth instead of attaching it in its back. Its tongue is anchored in front in order to make hunting for prey easier because the from needs to throw its tongue to capture its food then throw the food back to its mouth.
Answer:
A: Disruption to electricity power grid.
