It's the stimulus because that's what triggers the salivation which is the reaction
Answer: I think a because without asking question how are u gonna know what u gonna do? Then u do reserch of the question and the c and final and b
Explanation:
The answer would be C. Hydrolysis
Around 40 million years ago
The earliest whales that we think were fully aquatic, that is, they never left the water, are found around 40 million years ago, during the middle Eocene. That means that the transition from terrestrial animals to fully aquatic animals took about 12 million years.
Answer:
Your answers will be C and A
am not quite sure