Chapter 19- The Cardiovascular System: The Blood Choose the single best answer to each question.

1) Which of the following is NOT function of blood?

A) transports nutrients, wastes and gases
B) regulates pH
C) defends against infection
D) promote blood loss
E) distribute heat

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

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

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting