How does the burning bush affect the ecosystem that it is invading?

Which type of respiration takes place when there is no oxygen present

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

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