Breadth in biology questions with 100% correct answers 2025

Breadth in biology questions with 100% correct answers 2025 Air moves in and out of human lungs through the trachea, which is lined with cells. The diagram below shows a section containing these cells Which of the following statements about tracheal cells is correct? A Cells X, Y and Z are all columnar epithelial cells. B Cells X and Y move mucus and trapped bacteria out of the trachea. C Cell X releases mucus into the trachea. D Cell Z is a goblet cell. - Correct Answer C What are the two purines? - Correct Answer Adenine and Guanine 3 Which of the options, A to D, is a reason why plants require specialized transport tissue? A to allow osmosis to take place B because they all have a large surface area to volume ratio C to carry sucrose to their leaves D to overcome the limitations of diffusion over large distances - Correct Answer D Many plants are adapted to the availability of water in their environment; one group of these plants is the xerophytes. Which one of the following statements correctly describes a xerophyte? A Smooth cordgrass grows in highly saline marine estuary environments. B The water lily has aerenchyma tissue to allow the movement of gases to submerged roots. C The poison tree has leafless branches covered in thorns to reduce water loss. D Water lobelia completes its entire life cycle submerged in shallow ponds - Correct Answer C