<span>very acidic ph - stomach
mucociliary escalator - intestines
cerumen and sebum - ear
lysozyme - tears and saliva
keratin and tightly packed cells - skin
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The correct answer is "mucociliary escalator intestines".
The mucociliary escalator is a mechanism that belongs to the bronchi, not the intestines. The mucociliary escalator is a mechanism of self-clearing where cilium, cilia and mucus work together to expel any material that's solid, or not too fluid or gaseous, including pathogens. From the main bronchi to the alveoli there is a moist lining produced by the specific present epithelium. This epithelium presents cilia. The cilia are embedded in mucus. The mucus is what helps in trapping any material that's solid, or not too fluid or gaseous, including pathogens. After these are trapped so that they don't progress to the alveoli, the cilia move in such a way that push the particles again to the exterior of the bronchi, like an escalator.
<span>The answer is letter c. Artificial erosion causes a loss of fertile soil. Natural erosion is considered to be a beneficial process, since it helps create more fertile soil. While an Artificial Erosion causes fertile loss on the soil, artificial erosions causes drastic changes to the whole soil, that causes infertile soil.</span>
Answer:
four haploid daughter cells
Explanation:
each with the same number of chromosomes.
Your skin has 3 layers. The top layer is called the epidermis. The middle layer is called the dermis. The bottom layer is called the subcutaneous fat.
