(Question)
Q: What is the skeleton of the cell? Choices: - cytoplasm - cell membrane - cell wall - cytoskeleton A:
(Answer)
cytoskeleton

(Question)
Q: What term describes a way that small molecules or ions move across the cell membrane without input of energy by the cell? Choices: - physical transport - impassive transport - immune transport - passive transport A:
(Answer)
passive transport

(Question)
Q: Scientists found that the youngest rocks on the seafloor were where? Choices: - trenches. - mid - ocean sediments - mid - ocean glaciers - mid-ocean ridges A:
(Answer)
mid-ocean ridges