A single na+/k+ atpase pump is present in the plasma membrane of an artificial cell with an initial cellular environment of 1000 sodium ions and 1000 molecules of atp inside the cell, 1000 potassium ions outside the cell, and a net charge differential across the plasma membrane of 0. Assuming the only changes in the cellular environment are a result of the pump's actions, what would be the number of na+, k+ and atp molecules inside the cell after 100 cycles of the pump and what would be the net charge differential (inside-outside) across the plasma membrane?.

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.

Students taking a clep exam can earn between college credits, depending on the college's policies.

When an employee arrived late to a scheduled meeting, his supervisor questioned the veracity of his excuse. which of the following is the most accurate definition of veracity in this case?