<h3><u>Answer;</u></h3>
Lobules
<h3><u>Explanation;</u></h3>
- In respiratory system the lungs are two spongy, cone shaped organs in the thoracic cavity and are separated from each other by the heart and other structures found in the mediastinum.
- Deep grooves called fissures divide each lung into lobes. Each lobe receives its own secondary bronchus. Each lung lobe is divided into smaller segments that are supplied by a tertiary bronchus.
- <em><u>The segments, in turn are subdivided into small compartments called lobules, which contains, lymphatic vessel, arteriole, venules and also a branch from terminal bronchiole wrapped in elastic connective tissue.</u></em>
Answer:
When acid rain falls on the marble stone, it dissolve calcium when the acid present in the rain water react with the calcium of the marble stone.
Explanation:
Acid rain is formed when gases such as carbondioxode and sulfur dioxide etc that is emitted from vehicles and industries goes to the atmosphere and react with the water present in the form of clouds and formed the water acidic. When this water comes down to the earth, it damage many materials due to acid present in it.
D. Prokaryotic cells do not have a true nucleus or membrane-bound organelles.
