Which of the following statements is true? 1. If you don't know a law exists, it's ok to not follow it. 2. People in an experiment do not have a right to refuse participation. 3. Scientist must make moral decisions on controversial issues. 4. Honest mistakes do not need to be corrected because they are not made on purpose.

What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above select the best answer from the choices provided a b c d