Could a tiny concentration of a contaminant that mimics a hormone affect a plant significantly? why or why not?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.

What are the four stages of cell signaling?