The correct answer is D. heavy rain on a sloped granite.
Answer:
Respiratory bronchiole
Explanation:
The respiratory bronchioles represent the narrowest airways within the lung, being continuations of terminal bronchioles that have approx. 0.5 mm in size. The epithelium of the respiratory bronchiole is composed of cuboidal ciliated cells and a small number of non-ciliated (secretory) Clara cells. The respiratory bronchioles lead into alveolar ducts composed of smooth muscle and connective tissue (i.e., elastin and collagen), connecting the respiratory bronchioles to the alveolar sacs.
The biggest terrestrial mammals on Earth are African elephants. Their wider ears, which resemble the continent of Africa somewhat, help to distinguish them from their Asian kin. (Elephants in Asia have more compact, rounder ears.)
<h3>What are the large species of elephant?</h3>
Scientists have discovered that there are actually two species of African elephants, despite the fact that they were previously considered to be a single species. Both of these species are endangered.
While forest elephants are smaller creatures that dwell in the woods of Central and West Africa, savanna elephants are larger creatures that wander the plains of sub-Saharan Africa. Savanna elephants are classified as endangered by the International Union for the Conservation of Nature, whereas forest elephants are classified as severely endangered.
Learn more about species of elephant here:
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