How frequently do most coastal areas experience high tides? twice a day twice a month four times a day four times a month

Plants that have reproductive structures called cones are?

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

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