Does anybody know if the answer is right

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?