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Straighterline Micro 250 final prep Questions and Answers 100% Pass
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Straighterline Micro 250 final prep Questions and Answers 100% Pass Which class of eukaryotic microorganisms can be subdivided into groups such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? A. Helminths B. Algae C. Protozoa D. Fungi - ANSWER-Protozoa Genetic material can be excis...

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  • November 18, 2024
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  • 2024/2025
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Straighterline Micro 250 final prep
Questions and Answers 100% Pass

Which class of eukaryotic microorganisms can be subdivided into groups such as

Mastigophora, Sarcodina, Ciliophora, and Apicomplexa?




A. Helminths




B. Algae




C. Protozoa




D. Fungi - ANSWER✔✔-Protozoa


Genetic material can be excised from one chromosome and directly integrated into

another via




A. conjugation.

Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 1/90

,B. transformation.




C. transduction.




D. transposons. - ANSWER✔✔-transposons.


Which immune cell secretes numerous cytokines that help to coordinate the response of

other immune cells?




A. B cell




B. TH cell




C. TC cell




D. Platelets - ANSWER✔✔-TH cell


Which of the following enzymes are used to amplify DNA during PCR?



Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 2/90

,A. restriction endonuclease




B. DNA polymerase




C. reverse transcriptase




D. DNA ligase - ANSWER✔✔-DNA polymerase


In the nitrogen cycle, which of the following steps involves removal of nitrogen from

the atmosphere by bacteria? - ANSWER✔✔-nitrogen fixation, In nitrogen fixation,

nitrogen is removed from the atmosphere by nitrogen-fixing bacteria and converted to

ammonia.


If enough h+ ions are added to pure water to raise the H+ concentration of the solution

to ten times higher than the original concentration, what is the resulting OH-

concentration of the solution? - ANSWER✔✔-10 -8M


Fungi are able to reproduce asexually by creating conidiospores and sporangiospores.

Which of the following is an accurate explanation for why it is advantageous that they

are also capable of sexual reproduction?


Select one:
Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 3/90

, a. Asexually produced offspring are more likely to compete for resources and will kill

off the parental fungi.


b. Fungi normally produce sexually but produce asexually in harsh conditions such as

severe drought.


c. Offspring from two parents may have variations in form and function that contribute

to survival of the species.


d. Sexual reproduction produces more offspring at a faster rate than spore formation. -

ANSWER✔✔-Offspring from two parents may have variations in form and function

that contribute to survival of the species.


In a laboratory bacterial cell culture that has been infected by a virus, plaques are areas

in which


Select one:


a. bacterial cells are resistant to the virus and have not been infected.


b. there is no nutrient available for the bacteria to grow.


c. the virus has spread and left behind the remains of dead cells.


d. the virus has not yet spread to that area of cells. - ANSWER✔✔-the virus has spread

and left behind the remains of dead cells.


The sun's energy is delivered as discrete packets that travel as waves and are called


Select one:

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