Which is the best definition of activation energy


well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.


regulates body hormones, aldosterone, vasopressin


signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

is the last one

the energy required to break the bonds of reactant molecules


thats the best and it shows more details about  activation energy

Hope this helps :)

the energy required to break the bonds of reactant molecules

That is the best answer.

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