Ag Science 7 Biological characteristics of soil

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What is the biomass of a soil?

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Is the total mass of living material in a habitat

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What is humus?

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The plant and animal material which has been decomposed

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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Humification

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The process by which soil organic matter is converted to humus.

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NGSS.MS-LS2-1

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What is a microbiome?

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A community of microorganisms (e.g. bacteria and fungi) that inhabit a particular environment

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NGSS.MS-LS2-3

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Which of these microorganisms are found in the soil? Options: Bacteria, Actinomycetes, Fungi

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Bacteria, Actinomycetes, Fungi

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NGSS.MS-LS2-3

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Symbiotic relationship

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Where different organisms live in a close relationship and at least one organism benefits

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Mutualistic relationship

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Both organisms benefit from the relationship

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Rhizosphere

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The zone of soil surrounding a plant root where the biology and chemistry of the soil are influenced by the plant root

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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Endorhizophere

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Area of the cortex and endodermis of root where microorganisms can occupy spaces between cells and makes use of nutrients by roots

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What are the advantages of mycorrhizal fungi? Options: Enhance the water-holding capacity of the soil, Help bind soil particles together, better structure and prevent soil erosion, Have a selective intake of minerals, preventing toxicity from heavy metals, Provide resistance against nematodes to the plants

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Enhance the water-holding capacity of the soil, Help bind soil particles together, better structure and prevent soil erosion, Have a selective intake of minerals, preventing toxicity from heavy metals, Provide resistance against nematodes to the plants

Tags

NGSS.MS-LS2-3