What are some steps that scientist can take in designing an experiment to avoid false negatives

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

What is the problem in this article? what solution does the article propose?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.