What is the function of the respiratory system? o elimination of wastes
O transport of blood
O nutritional support
o transfer of gases

***ANSWER ON EDGE: TRANSFER GASES***

which drscribes the most direct function of the nostrils?

*** ANSWER ON EDGE: permits air to enter the body ***

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer