Q4. The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function? (1) A. Alveolar cavity - main site of exchange of respiratory gases. 11 B. Arterial capillary - passes oxygen to tissues D co C. Red blood cell - transport of CO, mainly நடுந் A B. so D. Capillary wall - exchange of O, and CO, takes place here

Which of the following accurately describes the correct order of events in the process of transpiration within a plant? a. water enters the roots, passes through the leaves, and leaks through the stem pores. b. water enters the roots, gets transported through the stem, and evaporates through the leaves. c. water is absorbed through the leaves, is transported through the stem, and nourishes the roots. d. water is absorbed through the leaves, nourishes the roots, and leaks through the stem pores.