Exam 38: Introduction to Animal Organization and Physiology

The expression of the microRNA miR-4423 is ____ in lung tumors, and ____ its expression can decrease tumor size, suggesting that a decrease in miR-4423 contributes to lung carcinogenesis.

A ____ feedback control system functions when a change in the internal environment triggers the body to oppose the change and restore the normal environmental conditions.

For changes that occur in response to environmental conditions, changes in gene expression are most likely due to ____, while changes in DNA sequence are more likely due to ____.

Why are both blood and bone considered connective tissue?

The lymphatic system is composed of lymph nodes and ducts, the spleen, thymus, bone marrow, and white blood cells, all of which are central players in defending the body against microorganisms and viruses.

Which organ system(s) play role(s) in eliminating metabolic wastes from the body?