Write a testable question that could be used to further investigate the topic of cells in organisms. please help i will give brainleist

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Read the article and use the information to answer the questions that follow discovering the structure of dna explain how the discoveries by rosalind franklin watson and crick build an accurate model of dna done