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Answer:
The function of the villi and the microvilli is to increase the amount of surface area available for the absorption of nutrients. Each villus has a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
Explanation:
There, the villi and the microvilli increase intestinal absorptive surface area approximately 40-fold and 600-fold, respectively, providing exceptionally efficient absorption of nutrients in the lumen. There are also enzymes (enterocyte digestive enzyme) on the surface for digestion
<span>Plants that get nutrients from rocks give off chemicals that cause chemical weathering. The chemicals from the plants, weather the rocks and cause them to change.
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Answer:
A. Archaea
Explanation:
A. Archaea. Prokaryotes can be divided into two domains, archaea and bacteria. In contrast, species with nuclei and organelles are placed in the domain Eukaryota.
Biogeochemicle cycles are the pathways by which a chemical substances (carbon, nitrogen, oxygen, phosphorus) moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments.
Organic carbon is found in all land-living organisms,, as well as soils in form of the calcium carbonate. Plants and animals(including humans) utilize carbon to produce carbohydrates, fats, and proteins, which are then be used to build their internal structures or to obtain energy. Carbon is released into the air through the processes of respiration in a form of CO2.
The negatively human impact on the carbon cycle is through direct emissions from burning fossil fuels (transfer of carbon from the geosphere into the atmosphere) or through the process of calcination of limestone for clinker production, which releases CO2.
