Answer:
The study of ancient humans had changed over time as humans develop higher technology and more knowledge over time.
Explanation:
For example, Anthropogeny was discovered in the 1800s, and then people started learning new things and technology developed more.
Hopefully, this helps! :D
Answer:
Negative Reinforcement.
Explanation
This is an example of negative reinforcement.
Answer:
D. amphetamines became available from illegal laboratories rather than legitimate pharmacies
Explanation:
Due to the amendments to federal drug laws known as Drug Abuse Control Amendment of 1965, amphetamine became available from illegal laboratories rather than legitimate pharmacies. Prior to the amendment drugs like barbiturate, amphetamine and lysergic acid diethylamide (LSD) could easy be gotten from pharmacies but the amendment restricted the availability of such drugs. The amendment was as a result of increase in drug abuse among the American population.
Answer:
Hello, I would say the correct answer is C Medium if I got it wrong just tell me.