Answer: These are the "villi" ; which are "finger-like" projections that increase the surface area for absorption of nutrients.
Furthermore, there are "microvilli " attached to these "villi" , which further increase the surface area for better absorption of nutrients.
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Hope this helps!
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Required a health warning on cigarette packages, prohibits cigarette advertisements on tv and radio, institues the 4 warning labels all listed as Surgeon General's Warnings, made domestic flights of less than 2 hours smoke-free, restricting sales to anyone under 19
The Integumentary System.
