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ira [324]
4 years ago
12

Bright-field microscopes are used for most microscopic work. True or false?

Biology
2 answers:
BARSIC [14]4 years ago
6 0
True, Bright-field microscopes are used for most microscopic work.
Naddika [18.5K]4 years ago
3 0

Answer:

The correct answer will be option-true

Explanation:

A bright-field microscope is an optical instrument widely used by students and researchers all over the world.

The bright-field microscope is a compound light microscope which uses the light to see the samples. In the microscope the samples appear darker in color on the bright or light-coloured background.  This enables the viewer to clearly see the sample in the microscope.

Thus, true is the correct answer.

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this mannitol salt plate was inoculated with an unknown staphylococcus species. what can you conclude about this unknown organis
Andrei [34K]

Complete question: Analyzing Mannitol Salt Agar (MSA): An MSA plate was inoculated with an unknown Staphylococcus species. What can you conclude about this unknown organism?

A. It can ferment mannitol.

B. It produces acid during fermentation, leading to a lower pH in the medium.

C. It can tolerate higher salt concentrations.

D. It could be S. aureus.

E. All the above

Answer: The correct option is E ( all of the above)

Explanation:

Culture medium is a growth medium that is used in microbiology which permits the growth of microorganisms. It can be in a gel or liquid form. There are different types of culture medium which includes:

--> Differential medium

--> Selective medium

--> Enriched medium

Mannitol Salt Agar( MSA) is a type of selective culture media that is used in microbiology for the identification and isolation of staphylococcus species from biological samples. A typical MSA includes essential growth factors and trace nutrients such as nitrogen, vitamins, minerals and amino acids essential for growth. The medium contains sodium chloride( salt) with mannitol which is the fermentable carbohydrate source

Staphylococcus aureus organisms are capable of fermenting mannitol, produces acid during fermentation leading to a lower pH in the medium, and can tolerate higher salt concentrations. Therefore the unknown organism is POSITIVE to mannitol salt agar analysis. Thanks and I hope it helps!

7 0
3 years ago
Does photosynthesis remove take or use co2 from atmosphere?
Lady bird [3.3K]

Answer:

Take in

Explanation:

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.

7 0
3 years ago
Factors in a forest ecosystem biotic and abiotic
Nataly [62]
Biotic: Trees. Mosses. Fungi. Mammals. Birds. Reptiles. Insects. Worms. 
Abiotic: Rocks. Water. Sunlight. Soil. Minerals. Temperature. 
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Question 8 of 25
monitta

Answer:

The answer is option D.

<h3>muscle weakness</h3>

Hope this helps you

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Answer:this makes no sense

Explanation:

5 0
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