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anyanavicka [17]
3 years ago
9

What is the source and sink for xylem and phloem?

Biology
1 answer:
Strike441 [17]3 years ago
8 0

Answer:

Sap moves through phloem via translocation, the transport of dissolved materials in a plant. Unlike the xylem, which can only carry water upward, phloem carries sap upward and downward, from sugar sources to sugar sinks: Sugar sources are plant organs such as leaves that produce sugars

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the three kinds of nitrogenous wastes based on the energy required to synthesize them are arranged; Ammonia < urea < uric acid.

Nitrogenous wastes are the nitrogen compounds that organisms use to get rid of excess nitrogen. Ammonia, urea, and uric acid are the most common nitrogenous wastes that animals excrete. Protein metabolism generates all of these nitrogenous wastes.

Ammonia is the most toxic of these nitrogenous wastes, and it is the most common but requires the least energy. Urea is more harmful than uric acid, but it is less harmful than ammonia, reducing the amount of energy required to synthesize it. Uric acid is the least harmful, a non-poisonous particle with four nitrogen molecules. This is useful for birds and reptiles that lay hard eggs because it eliminates the most nitrogen, uses the least amount of water, and is not toxic. It also takes the most energy input.

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The classification of species by morphology involves what
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Secretions from the highlighted glands ________. secretions from the highlighted glands ________. produce a layer of enzyme lade
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<h3><u>Answer;</u></h3>

produce a layer of enzyme laden mucus that captures dirt and destroys inhaled bacteria

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