In at least three sentences, describe why transitioning to a hydrogen economy has advantages.

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

Who discovered tuberculosis bacteria?