Organ systems are very independent of each other, so if the parathyroid gland failed to function properly, the body would simply adjust with no major complications. a. True
b. False

During convection, less dense fluid rises and denser fluid sinks.

Compare the parts of a cell and the cell as a whole to another common nonliving system (i. e., a car, a city, describe the parts of a cell and their primary function.

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