Cindy hypothesizes that if she adds salt to a weak acid, then its ph will be lowered. she develops the following experiment to test her hypothesis. which of the following steps could compromise the validity of her experiment?

fill two beakers with 50 ml of the same weak acid.
add salt to the first beaker.
add water to the second beaker.
measure the ph of the solution in each beaker.

Which statements are true of a scientific theory but not a hypothesis

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.

If the rna molecule in a human has the nucleotide sequence of guu, this would the amino acid valine would be needed to make the protein. how would this cha process was occurring in a mushroom?