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suter [353]
3 years ago
6

I need to know the answers to these

Biology
1 answer:
MrRa [10]3 years ago
8 0
4. TRUE
5. A. (Invasive species take over the ecosystem)
6. True ( the low tide exposes many creatures and plans to seagulls to have a wider range of a food choice)
7. Would be B. (The earth does need to make a rotation due to the moons gravitational pull on earths sea)
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What effects can an invasive species have on an ecosystem?Choose all that apply
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Answer:

It should be D.

Explanation:

The invasive species will negatively effect the ecosystem and the natural predator in the area. Like the Blue Lobster problem in Maine.

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Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
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Answer:

The microorganisms present metabolic wastes that serve as the primary source of food for other living things.

Bacteria that live free in the soil or in symbiosis with plants are essential to fix nitrogen, both nitrates and ammonia. These bacteria take nitrogen directly from the air, originating compounds that can be incorporated into the composition of the soil or living beings.

This property is restricted only to prokaryotes and is widely distributed among different groups of bacteria and some archaeobacteria. It is a process that consumes a lot of energy that occurs with the mediation of the enzyme nitrogenase, which the rest of the living organisms that cannot do or comply with this process is because they lack said enzyme.

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Morphologically, its main characteristic is that they lack a rigid polysaccharide cell wall.

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By nitrogen fixation is meant the combination of molecular nitrogen or dinitrogen with oxygen or hydrogen to give oxides or ammonia that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living things. Nitrogen fixation can occur abiotic (without the intervention of living beings) or by the action of microorganisms (biological nitrogen fixation). Fixation in general involves the incorporation into the biosphere of a significant amount of nitrogen, which globally can reach about 250 million tons per year, of which 150 correspond to biological fixation.

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C. Ethanol, ammonium chloride, phosphate buffer, magnesium sulfate, calcium chloride, trace elements

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