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ollegr [7]
3 years ago
5

Considering the experimental design, which claim is best supported using the data?

Biology
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

C low competition for glucose

Explanation:

From the given answer choices and information,

It cannot be A since there is no visual disease or any indication of disease in the experiment

Cannot be B, since space would not be an issue since it clearly hit 111 on day 3

and cannot be D since there is no indication of a change in temperature.

However, we know Petri Dishes have nutrients to stimulate cell growth, and those resources are not unlimited therefore we can only attest that a large portion of the nutrients have been consumed and starved some of the cells thus causing a population decrease

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which method of microbian control does not rely on denaturing proteins and/or disrupting the integreity of the cell membrane
Over [174]

Lyophilization Methods of microbial control do not rely on protein denaturation and/or disruption of cell membrane integrity

Lyophilization Freeze-drying or freeze-drying is the process of freezing the product and placing it under vacuum, then removing the water from the product, allowing the ice cream to go directly from solid to vapor without going through a liquid phase. Freeze-drying is a water removal process commonly used to preserve perishable materials, extend shelf life, or make materials easier to transport. Freeze-drying is to sublime the frozen water in the material by lowering the pressure and applying heat after freezing the material. Lyophilization converts pharmaceuticals into stable solids by removing water from liquids

To know more about freeze-drying visit:

brainly.com/question/14615167

#SPJ4

5 0
11 months ago
You add the following components (in the correct volumes and concentrations) to a tube to perform a PCR reaction Buffer Magnesiu
uranmaximum [27]

Answer:

b. False

Explanation:

These components are not sufficient to successfully perform a PCR reaction. Deoxynucleoside triphosphates (dATP, dGTP, dCTP, dTTP) are missing so that the PCR reaction can occur perfectly.

The PCR technique allows a specific fragment of the DNA molecule to be amplified thousands of times in just a few hours. This technique revolutionized research in molecular biology because it had taken a long time for DNA amplification. From PCR it is possible to obtain enough copies of a part of DNA to detect and analyze the sequence that is the target of the study.

For a PCR reaction to be performed a solution with some components must be prepared. These components are:

  • Magnesium chloride buffer (to optimize reaction and act as a cofactor for polymerase)
  • Forward and reverse primers (to customize the start of the enzyme reaction)
  • DNA polymerase (Enzyme required for replication of desired DNA region.)
  • DNA Template (the DNA to be copied)
  • PCR-grade water
  • Deoxynucleoside triphosphates: dATP, dGTP, dCTP, dTTP (act as bricks in the construction of DNA molecules).
3 0
3 years ago
Which of the following statements best explains why evolution by natural selection is considered a theory and not a hypothesis?
rjkz [21]

Natural selection provides the outline of an explanatory theory." Biologists consider it to be a scientific fact that evolution has occurred in that modern organisms differ from past forms, and evolution is still occurring with discernible differences between organisms and their descendants.

7 0
2 years ago
Explain the term "molecular clock" and describe the types of measurements and comparisons that can be made with this type of clo
arsen [322]

Answer:

In biology, a molecular clock can be described as a method to determine the time for the divergence of species which occurred by the process of evolution.

Explanation:

The mutation rates of different molecules are used in this method. The mutation rates for DNA sequences and amino acid sequences are usually considered. The molecular clock can be used to compare and estimate the splitting of a lineage. For example, by this method, one can interpret when the chimpanzees and humans diverged from each other.

Hope this helped!

-Toshino

5 0
3 years ago
Which gas is transported by the circulatory system in humans and is used by cells during respiration to release energy stored in
VladimirAG [237]
Oxygen is transported 
5 0
3 years ago
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