To answer this specific question,
pregnancy is an example of positive feedback. I am hoping that this answer has
satisfied your query and it will be able to help you in your endeavor, and if
you would like, feel free to ask another question.
B.
I'm pretty sure because, chemicals and pesticides can easily make insects more immune. So therefore the average pesticides will no longer work on them but also some may not be affected by the solutions.
Answer:
materials move against a concentration gradient
That Jupiter, Saturn, Uranus, and Neptune are the outer planets and the other planets are the 4 inner planets.
