<span>A: Native American
HOPE THIS HELP</span>
According to the copernicus, the first duty of the astronomer is observation.
What did Copernicus believe?
Nicolaus Copernicus (1473–1543) was a mathematician and astronomer who proposed that the sun was stationary in the center of the universe and the earth revolved around it.
How was Copernicus theory proved?
- Galelio discovered evidence to support Copernicus' heliocentric theory when he observed four moons in orbit around Jupiter.
- Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons).
Learn more about Copernicus here:
brainly.com/question/9329429
#SPJ4
I believe the answer would be C) Expansion.
Hope this helped, thanks!
Answer:
The answer is 1. classical conditioning.
Explanation:
Classical conditioning refers to the association of a conditioned stimulus (the alcohol in this case) with an unconditioned stimulus (the pain produced by the vaccinations), thus provoking an conditioned response (fear).
Russian scientist Ivan Pavlov is famous for his research on classical conditioning. In one experiment, he would ring a bell every time he was going to feed a dog. Soon, the dog started salivating at the sound of the bell.
