Write one suitable word for the following sentences.A. The air tubes of insectsB. Tiny pores on the surface of leafC. An anaerobic organism

1. A. The air tubes of insects - Tracheae
2. B. Tiny pores on the surface of leaf - Stomata
3. C. An anaerobic organism - Fermenter

Explanation

• The term tracheae refers to the intricate system of air tubes found in insects, which are responsible for gas exchange. These tubes allow oxygen to enter and carbon dioxide to exit the insect's body effectively without the need for a circulatory system to transport gases.

• Stomata are microscopic openings located on the underside of leaves. They play a crucial role in photosynthesis and respiration by allowing gases such as carbon dioxide and oxygen to move in and out of the leaf. The regulation of these pores is vital for maintaining water balance in plants.

• An anaerobic organism (termed fermenter) operates in environments devoid of oxygen. These organisms engage in fermentation processes to generate energy, using substrates like glucose. Anaerobic bacteria and yeast are common examples, and they are employed in various industrial applications, including the production of alcohol and bread.