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Lelu [443]
3 years ago
13

Based on what you know of photosynthesis, what effect would clearcutting of large forests have on the amount of carbon dioxide i

n the atmosphere?
Biology
1 answer:
Nikitich [7]3 years ago
4 0
Hello! <span>It would increase the level of carbon dioxide since less photosynthesis would be taking place.</span>
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2. When the plastic sheet is pulled down (inhalation), what happens to the pressure in the plastic bottle?​
Korvikt [17]

Answer: (i) Air pressure inside the bell jar increases.

(ii) The balloons inside the jar expand.

(iii)This is similar to the expansion of the lungs during inhalation.

(iv)This is similar to the contraction of the lungs during exhalation.

Explanation:

5 0
1 year ago
After the experiment,scientists organize and _the data?
telo118 [61]

The experiment is the procedure performed to prove a hypothesis. The researchers perform an experiment, which can provide data to prove, if the hypothesis suggested is true or not.

After conduction of the experiment several times, the researchers collect all the data and organize it. After organization of the data properly, they analyze the data collected, so that they can formulate, if the hypothesis is true or not.

Hence, the given blank can be filled with Analyze.

6 0
3 years ago
What are the body’s three defenses? How do they differ from each other.
Artemon [7]

Answer:

- Physical and chemical barriers

- non-specific innate responses

- specific adaptive responses

<u>The differences are...</u>

The first barrier is the physical and chemical barrier. It is the first line of defense when in contact with outside sources, this can be through the skin, earwax, nose-hair, etc.

The second barrier, the non-specific innate response, is after these outside sources have somehow managed to pass through the first barrier. They come into contact with cells and enzymes that help to defeat them.

The third barrier, the specific adaptive response, is the body's way of dealing with pathogens that the body has encountered before. (B cells activate)

8 0
2 years ago
The interaction between DNA and histone proteins (forming nucleosomes) plays a key role in the regulation of gene expression in
ladessa [460]

Answer:

A. The chromatin near cis-regulatory sequences will be more closed and there will be less transcription.

Explanation:

In the presence of histones, the cis-regulatory sequences of DNA like promoter, enhancers etc. are not exposed. The function of the histone acetyltransferases (HATS) is to cause chromosome decondensation i.e. removal of histones from the DNA so that transcription of the DNA could occur. Histone acetyltransferases (HATS) cause acetylation of lysine amino acid of the histone proteins. Acetyl group is negatively charged so the acetylation of histone proteins leads to the removal of their positive charge which ultimately leads to the decrease in the interaction between N terminal of histones and negatively charged phosphate group of the DNA molecule. As soon as histones are removed from the DNA where cis-regulatory sequences are located, the DNA becomes accessible for transcription.

But here a drug has been added which blocks the activity of histone acetyltransferases (HATS) in cancer cells. So it is quite evident that in these cells, histones will not get removed from the cis-regulatory sequences of DNA so the DNA will be more closer or tightly packed as a result of which  less transcription will occur.

7 0
3 years ago
What is the function of the organs of the digestive system
ohaa [14]

Answer:

The digestive system is a collection of organs that work together to digest and absorb food. Digestion is the process your body uses to break the foods you eat down into molecules your body can use for energy and nutrients. The following organs work together to help your body process the foods you eat.

3 0
3 years ago
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