What does it mean that a hypothesis must be testable?
O
A. The hypothesis must be shown to be true before the experiment.
O
B. The hypothesis must have an experiment that uses math.
O
C. There can only be one experiment that tests the hypothesis.
O
D. It must be possible to observe whether the hypothesis is true.

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Why are adults bigger than they were as children biology

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?