Stupid boy think that I need him...

Which of these statements are true about scientific theories and hypothesis

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.