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daser333 [38]
3 years ago
11

Which of the following is most helpful for identifying an organism using a dichotomous key?

Biology
1 answer:
Olegator [25]3 years ago
4 0
I believe it’s by the traits, so it would be physical structures. Because of there’s only two options available, which is see better by the traits of the unknown specimens.
Lol I think thouuuu cuz I do fully remember everything.
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The last one. Makes only have one X chromosome.
In turn if he has a daughter she's most likely to be color blind too.
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Cells need energy to function, but also need to be able to heal and grow for a person to be healthy. Which of the following desc
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Answer:

B. Oxygen molecules recombine to allow cells to get larger

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Which point of view concerning growth and development does this definition describe? "Behavior changes as a result of observing
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<span>B. Social learning theory

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3 years ago
What are biofilms, how do they form, and how can biofilms complicate treatment of infectious diseases?
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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
Kepler discovered that
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Answer:

all of the above

Explanation:

gravity makes a planet have a combination go straight yet go around the sun at the same time creating an ellipse

sciencefocus

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