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Bess [88]
3 years ago
8

What is the image point of

Biology
2 answers:
ICE Princess25 [194]3 years ago
7 0

Answer:

-31-{x}^{5}

−31−x  

5

 

Explanation:

1 Remove parentheses.

-31-{x}^{5}

−31−x  

5

 

wel3 years ago
6 0

Answer:

(-6,-4)

Explanation:

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A serial dilution is performed on a culture of Saccharomyces cerevisiae (Brewer's yeast). A 1:10 dilution was performed in serie
Karo-lina-s [1.5K]

Answer: CFU/mL = 14200 CFU/mL

Explanation:

Microorganisms are very small and difficult to count directly. Instead, a laboratory technique is used to count CFUs (Colony Formation Units). This involves making dilutions of a microbial suspension and spreading it on thin layers of agar containing nutrients for growth in Petri dishes also called agar plates. After incubation under ideal conditions, some plates are completely covered with microbial growth; some have little or no growth; and some are covered with individual isolated "spots", which are microbial colonies. Since a colony may consist of a single organism or a group of microbes, the dots represent a CFU.

To calculate the viable count of the stock culture, you have to count the number of colonies, multiply by the dilution and the result will be the plate count in CFU.

So, the equation is:

CFU/mL = Number of colonies / (Volume trasferred to plate x dilution blank)

100 microliters = 0.1 mililiter

1/10 = 0.1 (dilution factor)

Replacing the information from the question:

CFU/mL = 142 / (0.1 mL x 0.1)

CFU/mL = 14200 CFU/mL

5 0
3 years ago
People infected with the human immunodeficiency virus (HIV) have an increased risk of dying from secondary infections. Which of
nikdorinn [45]

Answer:

HIV destroys helper T cells

Explanation:

The evading viruses destroys helper T cells or the CD4+ thus the body can no longer stop some infections. The secondary infections also called opportunistic infections are rampant with people who have AIDS. This is because helper T cells help fight against most infections in the body.

8 0
3 years ago
Bacteria undergo mitosis and meiosis in order to reproduce and increase genetic recombination.
Salsk061 [2.6K]

Answer:

The correct answer is (b)-False

Explanation:

Bacteria do not undergo meiosis or mitosis to reproduce and increase its genetic recombination. To increase their genetic recombination bacteria take the help of horizontal gene transfer through which it gets the genetic material of another bacteria. This new gene helps bacteria to survive in the challenging environment.

Bacteria divide through binary fission in which one cell of bacteria divides into two equal daughter cell each having its genetic material because genetic material of parent cell segregate equally into both the cell.  

Therefore bacteria do not undergo meiosis or mitosis.

8 0
3 years ago
Question 6
blondinia [14]
Answer:

2

Explanation:
Since the mutation occurs within the organism it is directly affected. However, mutations need to occur in the reproductive system of organisms to affect their offsetting
4 0
3 years ago
Do you think it is okay to change the DNA of any species? Why or why not?
olchik [2.2K]

Answer:

ummmm not any species. maybe experimenting with plants or something. but you shouldn't interfere with animal life.

Explanation: they could die or get seriously ill from it

5 0
3 years ago
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