Answer:
Soil taxonomy is the system of soil classification used for mapping and classifying soils by the National Cooperative Soil Survey in the United States; it is used in many other countries as well. ... It employs a unique mnemonic system based on Greek, Latin, or other root words for assigning names to taxonomic classes
d. an opening specified for waste removal is present
Bears remove undigested food through an opening designated for waste removal, also known as the anus. This is characteristic of an alimentary canal system where food enters orally and waste leaves through a separate exit. This type of digestive system is referred to as monogastric.
In the case of bears, and other animals with a similar monogastric digestive system, the undigested food is excreted via an opening designated for waste removal as suggested in option D. The process begins in the mouth where food is broken into small particles. This food then travels to the stomach where digestion continues with the breakdown of large molecules. The digested nutrients are then absorbed into the body in the intestines. Any undigested food that is not absorbed is removed as feces through an opening known as the anus. This type of digestive system is also known as an alimentary canal, which is a complete system with an oral intake and a separate waste removal opening.
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b. kidney.
c. cerebrum.
d. placenta.
Answer: False
Explanation:
Absorption refers to the process by which substances, such as nutrients and drugs, move from the GI tract into the bloodstream or lymphatic system.
The term 'absorption' in biology refers to the process of substances moving from the gastrointestinal (GI) tract into the enterocytes, the cells that line the inner region of the GI tract. This process allows nutrients to be transported from the digestive system into the bloodstream.
True, the term absorption in the biological context often refers to the process of substances moving from the gastrointestinal (GI) tract into the enterocytes. The enterocytes are the main cells found in the inner lining of the GI tract, and they are responsible for the uptake of nutrients from the lumen of the GI tract into the bloodstream. This occurs via various mechanisms including passive diffusion, active transport, and endocytosis.
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