How has agriculture affected nitrogen cycling? what are some negative consequences of nutrient enrichment?

1 answer:

4 0

Fertilizers are added to agriculture, and less than half of the materials in fertilizers are actually utilized by plants. The remaining materials pollute the ground water, attach to soil particles, and pollute the atmosphere. Polluted groundwater can contaminate well water. Soil particles with attached nutrients affect microbes and the plants themselves. Atmospheric pollution results in atmospheric nitrogen decomposition, meaning excess nitrogenous materials are added to ecosystems which thereby alter the natural ecosystem.

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The answer is D) 1/2.

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Now, let's cross S1S3 and S2S4:
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The offspring with genotype S1S2 will have 3 units of color darkness. The offspring with genotype S1S4 will have 5 units, as well as the offspring with genotype S2S3. The offspring with genotype S3S4 will have 7 units.
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Answer: Components of cell junctions

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Fibroblasts are cells located in the dermis, responsible for the formation and remodeling of tissue. They synthesize fibers and maintains the extracellular matrix of the tissue of animals. So, the extracellular matrix is a structurally complex entity that surrounds and supports the cells found in tissues.

A cell junction a structure that exists within the tissues of animals and they consist of protein complexes that provide contact between cells or between a cell and the extracellular matrix. So if the cells do not appear flattened and do not attach to the extracellular matrix, then there is a problem with the components of cell junctions, which are mostly proteins as it was said before. And since proteins are coded by genetic information stored in DNA, then if there is a mutation in any of those genes, the fibroblast will fail to attach because the protein of the cell junction will be abnormal.

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