Which of the following states the central idea of the first paragraph?
for many reasons, humans did not notice they were being watched.
humans were like creatures that swim and live in water.
microscopes define the human view of the inhabitants of mars.
minds across the universe have been plotting to destroy humanity

“For many reasons, humans did not notice they were being watched” states the central idea of the first paragraph. The correct answer between all the choices given is the first choice. 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.

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.

i will have to go with 1.

hope this !