Which of the following is the major mechanism that drives pulmonary ventilation? Select the ONE best answer. pressure

environmental conditions

muscular response

chemical receptors

What is the relation ship between structure and function in an organism

Which statement describe events that occur during interphase?

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species