Answer:
Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body. Protein must be broken down into amino acids. Starches break down into simple sugars. Fats break down into into fatty acids and glycerol.
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There is competition among species when they jostle for scarce resources.
<h3>What is competition?</h3>
The term competition has to do with a situation in which members of the same species scramble for scarce resources.
The following are the definitions of the types of competition;
- interference competition - An individual directly interacts and changes the way other individuals attain resources.
- apparent competition - Individuals do not compete directly for resources, but are prey for the same predator.
- exploitation competition - Individuals interact indirectly while competing for common resources.
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Answer:
List three ways of reducing friction. 1.Polishing the rough surface. 2.Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and 3.allow smooth movement as rolling friction is less than sliding friction.
Answer:
b. 10,000 plants
Explanation:
Producers, plants, contain the most stored energy in an energy pyramid.
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Hepatocyte growth factor (HGF) is the only known growth factor that activates quiescent satellite cells in skeletal muscle.
Hepatocyte growth factor regulates cell growth, cell motility, and morphogenesis by activating a tyrosine kinase signaling cascade after binding to the proto-oncogenic c-Met receptor. Hepatocyte growth factor is secreted by mesenchymal cells and acts as a multi-functional cytokine on cells of mainly epithelial origin.
HGF, produced by some cancer cells, stimulates c-Met, through activation of the autocrine signaling system. Hepatocyte growth factor (HGF) is a paracrine hormone that plays an important role in epithelial-mesenchymal transition. HGF secreted by mesenchymal cells affects many properties of epithelial cells, such as proliferation, motility, and morphology.
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