This is probably because scientific journals get cross-referenced and peer-reviewed by other mainstream scientific organizations whereas a regular webpage can tell you just about anything without anything to back it up. Their credibility isn't as high.
Answer:
False
Explanation:
Objectives do not typically have a designated time period, while key results can be long lived.
There's many terms to choose from but one of the most mentionable is polytheistic
If you're talking about branches, then it's the legislative branch.
Answer:
The answer is Ivan Pavlov.
Explanation:
Ivan Pavlov was known for his studies in classical conditioning --that is, the way environmental stimuli can affect our physiology.
There is a very well know experiment in which he rang a bell every time he was going to feed a dog. He noticed that after the dog got conditioned to associating the sound of the bell with food, the dog would start salivating just by hearing the sound.
