Ayuda necesito esto para mañana

What is the difference between a scientific hypotheses and a scientific theory?

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

Which muscle cell structure stores calcium ions that are used to trigger the contraction?