10th Class Biology MCQS Gaseous Exchange Online Test 4

in-normal-condition-human-respiration-rate-is-3-a_-_16-to-20,larynx-is-made-of-3-a_-_cartilage,main-role-to-give-out-air-from-lungs-is-of-3-a_-_diaphragm,no-of-bronchi-in-the-air-passage-way-are-3-a_-_2,percentage-of-co-3-csub-3-e-2-3-c-2-fsub-3-e-in-exhaled-air-during-breathing-is-3-a_-_4-25,percentage-of-oxygen-in-inhaled-air-during-breathing-is-3-a_-_21-25,rate-of-breathing-depends-upon-concentration-of-which-gas-3-a_-_carbon-dioxide,stomata-are-present-in-3-a_-_epidermis,taking-in-oxygen-and-giving-out-of-co-2-is-called-3-f_-_gaseous-exchange,the-byproduct-of-photosynthesis-is-3-a_-_oxygen,the-core-temperature-of-human-body-remains-at-about-3-a_-_37-c-2-b-0-c,the-destruction-of-wall-of-alveoli-is-called-3-a_-_emphysema,the-pores-in-the-bark-layer-are-3-b_-_lenticels,which-brings-deoxygenated-blood-from-heart-into-the-lungs-3-f_-_pulmonary-artery