Answer: D. increase surface area
Explanation:
- Microvilli are hairs that aid in absorption of nutrients. In the small intestine, these cells contain microvilli, which are tiny hair-like projections that increase nutrient absorption. These projections increase the surface area of the small intestine allowing more area for nutrients to be absorbed.
Why was there more erosion in the scenario? There was more erosion in the Colorado Rockies scenario where there was steady rain compared to the scenario in the same area where there was only a drizzle. There is more erosion because the steady rain increased the volume of the river more than the drizzle did.
"Cell Biology. the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes." -From www.dictionary.com
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Answer:
About 20 kilometers
Explanation:
The biosphere is about 20 km from top to bottom. It has existed for about 3.5 billion years so it's pretty old