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Arada [10]
2 years ago
6

Which of the following are examples of short-term, human-induced environmental changes? Select three answer choices

Biology
1 answer:
Mamont248 [21]2 years ago
5 0
What’s the answer choices?
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What are biofilms, how do they form, and how can biofilms complicate treatment of infectious diseases?
Elis [28]

Answer:

<u>Biofilms are</u> defined as complex communities of microorganisms that grow embedded in a self-produced polymeric organic matrix and adhered to a living or inert surface, and that can present a single microbial species or a range of different species

Explanation:

The bacteria that form the biofilm are in what is called sessile form, exhibiting a phenotype different from those of the same cells in unicellular or free form (planktonic form) with respect to the growth rate and gene transcription (Donlan, 2002 ).

<u> The formation</u> of biofilms is an adaptive strategy of microorganisms, since growth in biofilm offers four important advantages: (I) protects microorganisms from the action of adverse agents, (II) increases the availability of nutrients for their growth, (III) facilitates the use of water, reducing the possibility of dehydration and (IV) enables the transfer of genetic material (DNA). All of these circumstances can increase your survival capabilities. As a consequence, <u>the usual methods of disinfection or the use of antibiotics are often ineffective against biofilm bacteria</u>.

In addition to the risk of contamination, the development of biofilms can interfere with different processes and cause damage to the equipment. In drinking water systems the formation of biofilms can obstruct the pipes reducing their speed and transport capacity causing an increase in energy consumption. The formation of biofilm in heat exchangers and cooling towers can reduce heat transfer and as a consequence its efficiency in the process. The formation of persistent biofilms on metal surfaces can cause corrosion due to acid production by bacteria.

6 0
3 years ago
4 When an atom takes on electrons, it will have which of the following?
Gre4nikov [31]

Answer:

a neutral charge

Dad I'm so taking electron so it would be a neutral charge because it will do something

5 0
3 years ago
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An organism's heart cells stopped working properly. As a result, what would happen to the organism? A. The organism would develo
stepan [7]
C. The organism would slow down its breathing, so that the heart could recover.
3 0
3 years ago
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Earths outer core is best inferred to be
natali 33 [55]
I think it would be crust 
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3 years ago
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What type of plate boundary produces earthquakes with the greatest focal depth?
cricket20 [7]

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convergent plate boundaries

In general, the deepest and the most powerful earthquakes occur at plate collision (or subduction) zones at convergent plate boundaries.

5 0
3 years ago
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