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nydimaria [60]
3 years ago
6

How can you tell a cold front is approaching?

Biology
1 answer:
OLga [1]3 years ago
4 0
The air cools as it rises and the moisture condenses to produce clouds and precipitation ahead of and along the cold front<span>. </span><span>a </span>cold front <span>typically produces deep clouds and rain showers and thunderstorms.


Hope this helped! (:

</span>
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Moderately toxic gases or liquids which have typically been used as refrigerants (in air conditioning units) and as aerosol prop
andrew11 [14]

Answer:

Freon

Explanation:

<em>Freon is a trademark name for halocarbon (specifically, fluorocabon) products that once served (and still serve in some cases) as refrigerants. They are no longer utilized as refrigerants due to their negative effects on the environment and the ecosystem in general.</em>

<em>In addition to being used as refrigerants, freons are also used as aerosol propellants in cosmetics and household sprays.</em>

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The bacterial transduction experiments done by Hershey and Chase, and the bacterial transformation experiments done by Griffith,
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Answer:

Hershey Chase  and Griffith experiment supported the same conclusion which was: DNA is the molecular substance of genetic inheritance.

Explanation:

Both experiments have was based on different phenomenon and techniques to prove same conclusion.

Hershey and chase conducted an experiment via bacteriophage which consists to DNA and protein coat that infects bacterial cells. He proved the DNA as genetic material by the help of transduction mechanism (Incorporation of Bacteriophage DNA in to bacterial cells). He used two group of Bacteriophage 1st group of Phage contain radioactively labelled proteins by Sulphur 32 isotope. While 2nd group contain Bacteriophage having P32 labelled DNA to infect Bacterial cells. After the infection, the Reaction tubes subjected to centrifuge and presence of radioactivity was determined in pellet and supernatant. The 1st group show radioactivity in supernatant while 2nd group shows racdioactivity in pellet or bacterial cells.

Griffiths just hypothesized a substance that can be transmitted from dead organism to alive organisms with the help of transformation phenomenon (uptake of Genetic material from the surrounding or environment). He conducted his experiments on <em>Streptococcus pneumonia avirulent and virulent species. </em>By mixing dead virulent species and live avirulent species and injecting into the mice results in the death of an experimental animal. While alone dead virulent species and live avirulent species fail to cause disease in mice.

8 0
3 years ago
Diffusion occurs because
Ket [755]

Answer:

Diffusion. ... Diffusion is the movement of molecules from a region of higher concentration to one of lower concentration. This movement occurs because the molecules are constantly colliding with one another. The net movement of the molecules is away from the region of high concentration to the region of low concentration.

Explanation:

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The question is find the slope of the line
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i do not know

Explanation:

4 0
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To be considered a living thing an organism must be able to
Ivenika [448]
The answer is B)reproduce
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