Which neurotransmitter is typically reduced in someone who suffers from depression, and is a primary target of anti-depressant medications?

Gregor mendel was the first scientist to use statistics to analyze scientific data before mandel's experiments, scientists believed that organisms acquired traits from their environment and pass them on to their offspring after mendel's discoveries were accepted scientists realized that traits passed to offspring were the result of genes being passed from parent to his parents this is an example of

Which of the following is not an example of conflict between related individuals?

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?