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rosijanka [135]
2 years ago
8

Which of the following statements are true about air?

Biology
2 answers:
AlexFokin [52]2 years ago
5 0

Answer:

4.Air does not have weight

kiruha [24]2 years ago
3 0

Answer:

1 is true, 2 is true, 3 is true, 4 in true, 5 is true,

Explanation:

6 is false

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In a line of human cells grown in culture, a geneticist isolates a temperature-sensitive mutation at a locus that encodes an ace
GarryVolchara [31]

Answer:

A general decrease in transcriptional activation

Explanation:

When acetyl groups are added to histone proteins by acetyltransferase enzymes, the 30-nm chromatin fiber will not be formed because the proteins are prevented from doing so. This further destabilizes the chromatin structure and allows the occurrence of transcription. However, raising the cells to  40°C does not allow the acetyltransferase enzyme to function and hence the acetyl group will be hindered from being added to the histone protein which is the main target of the enzymes. Thus, transcription activation will be blocked because the chromatin and nucleosomes would remain stabilized.

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3 years ago
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Resistance to antibiotics results from variations in the genetic code of streptococcus pneumoniae. Which type of molecule encode
Jobisdone [24]

Answer: nucleic acid  I believe

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3 years ago
Describe how the three different types of seismic waves move and affect the movement of the material they pass over or through.
son4ous [18]
Seismic waves travel in all the directions and used to determine the magnitude of an earthquake. There are 3 types of seismic waves that move in different directions.
1. P wave: It is the fastest of all three waves that travel through the interior of the earth and are compressive waves.
2. S wave: Secondary waves generally follow the P waves and travel through the interior of the earth but are shearing waves.
3. Surface wave: This is the slowest of all three waves that moves close to the surface of the ground.

These waves affect the movement of other materials when they are passing through the interior or surface of the earth.
P waves can move through the solid rocks and even liquids. S waves do not travel through the  liquids such as water and molten magma. Surface waves causes shaking of the ground and do not go deep inside the earth.
7 0
3 years ago
How does the DDT originally enter the food chain?
s2008m [1.1K]

Answer:

dichloro-diphenyl-trichloroethane

Explanation:

DDT is an insecticide that can pass up the food chain from insects to small birds, and then from the small birds to birds of prey, like hawks. It can accumulate in the birds of prey, giving them a large amount of DDT

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2 years ago
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The answer is B HOPE THAT HELPS

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