This map shows the movement of the world's tectonic plates. Which plate moves in more than one direction?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .