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Lilit [14]
3 years ago
12

Can you guys answer these 3 questions please? Or at lease one person for each question please!

Biology
1 answer:
rewona [7]3 years ago
6 0

Answer:

Answer for third question.

Explanation:

The permanent destruction of forests to use the land or trees is known as deforestation. Deforestation takes place due to a number of reasons like natural causes and human activities. The main cause for deforestation is  overpopulation. Overpopulation results in an increase in global needs which leads to expansion of infrastructures, industries, agricultural needs and thus deforestation. Other reasons for deforestation are infrastructure expansion , logging for wood based industries, farming, mining etc. Deforestation causes drastic changes in the environment. The environmental problems which results from widespread deforestation include climatic changes, loss of biodiversity, flooding, increase in greenhouse gas emission, acidic oceans, air and water pollution etc.  Deforestation results in global warming.  Planting trees reduce the effects of deforestation by preventing soil erosion and pollution. The other ways to lessen the effects of deforestation includes recycling and using of recycled products. Reduce the usage of paper and use wood alternatives like hemp, bamboo, wood composites etc for construction and remodeling products. Also we can raise awareness in the community against deforestation through campaigns

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Mutations in two important cancer-critical genes, encoding p53 and Rb, respectively, are commonly found in cancers. What type of
yuradex [85]

Answer:

Germline mutations

Explanation:

Mutation in the cancer critical genes leads to the formation of stable mutant protein whose accumulation leads to the origin of cancer cells. Mutant p53 proteins not only lose their tumor suppressive activities (P53 gene is a tumor suppressive gene) but often gain additional oncogenic functions that allow for uncontrolled division of cells allowing increased growth and survival advantages. the same also goes for the retinoblastoma gene which is also a tumor suppressor gene that regulates cell division and other cellular activities. This mutations are usually inherited and can be transfered to their offspring.

4 0
3 years ago
I NEED SO MUCH HELP ON THIS WORKSHEET PLEASE ANYONE HELP ME
Tema [17]
What work sheet? I'm great in Biology!
5 0
3 years ago
The domestic cat genome contains 2.9×109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how man
IgorLugansk [536]

Answer:

Number of nucleosomes in 2.9 * 10^9bp is equal to 1.47 * 10^7

Explanation:

For wounding one nucleosome, total length of DNA required is equal to 146 bp

The length of  linker DNA in mammals is equal to 50 bp

Thus , the total length of DNA that confides between two nucleosome is equal to the sum of wounding length of DNA and the linker length

= 146 + 50\\= 196bp

Thus, in 196bp length of DNA, the total number of nucleosomes is equal to 1

Thus, number of nucleosomes in 2.9 * 10^9bp is equal to

\frac{2.9* 10^9}{196} \\1.47 * 10^7

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What causes air to rise in ‘lifting due to topography?’
Marina86 [1]

Answer:

heating of the mountain slope by the sun

3 0
2 years ago
Which choice best describes the purpose of most pharmacogenomic research??
zavuch27 [327]
Pharmacogenomic is defined as <span>the study of the role of the </span>genome<span> in </span>drug<span> response. It is a combination of Pharmacology and Genomics.

It studies how the genetic makeup of an individual affects his or her response to drugs. For example, a certain drug is administered to two individuals. One doesn't have any adverse reaction while the other one has. Pharmacogenomics will then conduct tests and study its results on why two individuals given the same drug have different reaction to it.</span>
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