You slide your supply basket across your lab table while using about 5 N of force. You push two lab tables across the floor and use about 100 N of force. Which of Newton’s laws explains why this happens?

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Why do we perceive objects as retaining their brightness under different lighting levels?

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