The following statement is false, and it's 5 points not 50 :-)
They catalyze the chemical reactions. For the molecules at the beginning for the cycle.
Tadpoles have gills allowing them to breathe underwater while frogs have lungs. Tadpoles have tails and fins to help them swim while frogs have arms and legs.
I am pretty sure the answer you're looking for would be Analog
I hope this helps:) Have a great day!!
