Please fftell me this assignments sollution

Dear student,
The solutions to your 2, 3, and 4 questions have been provided below. Please find the answers:

2. a. There are 12 stomata in the drawing of the leaf epidermis.
b. 7 stomata are open out of the 12 seen in the diagram.



c. No stomata will open at night in order to limit transpiration and conserve water.

3. a. The energy is obtained from food by a process called respiration.
b. The intake of oxygen and output of carbon dioxide at the respiratory surface is called the gaseous exchange
c. The process of renewing air in the lungs is called Ventilation
d. The term breathing includes gaseous exchange and Ventilation. 

4. The order of structure through which the incoming air passes is as follows: Nasal cavity, pharynx+glottis larynx, trachea, bronchi, bronchioles, and alveolus. 

Please post rest of the questions in a separate thread to get rapid assistance from our experts. 

Hope this clears your doubt.
Regards.
 

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