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cestrela7 [59]
3 years ago
12

There are 2000 Hydrilla individuals per square kilometer in a certain area of a body of

Biology
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:true

Explanation:

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Plz help asap i’ll give brainlest <br> (only one answer)
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Answer:

Nucleic Acids.

Explanation:

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3 years ago
In the context of sensory receptors, the intensity of the stimulus is communicated to the brain by varying the _____ of the acti
Ipatiy [6.2K]
The answer to this question would be: frequency

The higher intensity of the stimulus, the higher frequency of the action potential will be sent. The nerve can't send a higher action potential, so it firing at higher at higher intensity instead. So when you felt an intense pain, that means the pain receptor is firing more stimulus per second compared to low or mild pain.
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3 years ago
Fog generally develops around areas that are
mart [117]

Answer:The real answer is D

Explanation:

6 0
3 years ago
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Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
insens350 [35]

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.

Dunaliella is a genus of microscopic algae of the Chlorophyceae class and of the order Volvocales. All are unicellular, although with very varied morphologies.

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

The ecology of this genus of green algae is characterized by its high tolerance to salinity, with eukaryotic organisms having greater tolerance to salt. They are euryhaline, adapted to salt concentrations from 50 mM NaCl to almost 5.5 M NaCl.

Explanation:

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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3 years ago
Plants take in nutrients and water through their roots and then transport these materials to the rest of the plant. Photosynthes
Nataly [62]

Answer:

I believe it is the plasma in our bloodstream

Explanation:

plasma holds most of the nutrients in our body and flows in our blood transporting them through our body.

6 0
2 years ago
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