The answer is (1) !!
it is one direction, from sun to produces to consumer !!
Because it carries a lot of blood to the arteries
B. <span>The thesis statement is the answer to the research question</span>
Secondary or second-level consumers eat primary consumers. Tertiary or third-level consumers eat lower-level consumers and are sometimes called final consumers. Some secondary and tertiary consumers eat plants as well as lower level consumers, making them omnivores.
