What happens after we die?

1 answer:

3 0

Answer: Our bodies stay fresh for a short period time, then enter <em>rigor mortis</em>, then began the slow process of decomposition.

Explanation:

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Meselson and Stahl used density labeling of DNA to show that DNA replication occurs via a semiconservative mechanism. In their e

cricket20 [7]

Answer:

The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.

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3 years ago

inhibition is a mechanism of succession in which Group of answer choices the arrival of one species at a site affects the subseq

Stolb23 [73]

Answer:

option B: one species decreases the probability that a second species will become established

Explanation:

Inhibition as a mechanism of succession occurs when some early species which could also include pioneer species make the site less suitable for the development of other species and do not allow them to become established and grow. When eventually these early species die, other species that were hindered will subsequently grow and become established gradually giving rise to a climax community.

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4 years ago

The government wants to set new regulations that prohibit chlorofluorocarbons (CFCs) use in aerosol sprays and refrigerants. How

Liono4ka [1.6K]

That act will help the sustainability of out environment because : C. It will slow down the degradation of the ozone layer

The usage of CFC will crate chlorine atoms that catalyze ozone degradation. By prohibiting this product, Government will slow down Ozone's degradation

hope this helps

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3 years ago

Which best explains the importance of a selectively permeable cell

IrinaVladis [17]

C It controls what is allowed to enter or leave the cell.

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Which of the following is true about the inheritance pattern of a sex-linked trait?

bonufazy [111]

D. One sex has a higher chance to inherit it than the other (male).

These can be either recessive or dominant. We usually think more of the recessive traits like color blindness and hemophilia but dominant sex-linked traits also exist (fragile X).

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3 years ago