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marusya05 [52]
2 years ago
8

Which timeline shows the correct order of contributions made to the discovery of DNA?

Biology
2 answers:
Anna11 [10]2 years ago
7 0

Answer:

The correct answer is B.

Explanation:

DNA was discovered in 1800, and then scientists studied DNA with X-Rays. After a while, scientists published a 3D model of DNA, and shortly after, scientists decoded DNA genes. So the answer is Option B.

Hopefully, this helps! :D

Ask your question below!

steposvetlana [31]2 years ago
4 0

Answer:

B

Explanation:

The timeline shows that dna was discovered till humans decoded it.

Have a nice day!

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What makes stem cells so important in medical research
lara31 [8.8K]

Answer: Pretty much every aspect of them

Explanation:

Stem cells have unique regenerative abilities which can be used for treating diseases and disabilities (from diabetes to MS). They can also be used to graph skin from burns etc. The stem cell science world seems to leave so many options open for discoveries and they have less negative side effects in comparison to the chemical treatments available or soon to become available. Stem cells can heal rather than pharma therapies covering the ailment and leading to other issues.

5 0
2 years ago
The degradation of the environment from litter is a A. a negative externality. B. free rider problem. C. Tragedy of the Commons.
AlekseyPX

Answer:

D. Both a and c are correct.

Explanation:

The tragedy of the commons is a situation in a shared-resource system where individual users, acting independently according to their own self-interest, behave contrary to the common good of all users by depleting or spoiling the shared resource through their collective action.

It damages our environment (plants, animals) and impacts local tourism. It is smelly and dirty, and carries germs, bacteria and viruses. Places with a high degree of littering see a decreases in property values, and are more likely to be the site of fires.

Pollution is a negative externality. Economists illustrate the social costs of production with a demand and supply diagram. The social costs include the private costs of production incurred by the company and the external costs of pollution that are passed on to society.

Blowing litter can cause automobile accidents as well as land and air pollutions

7 0
3 years ago
Which principle helps to explain the reason behind why alleles for a single trait separate from each other when gametes are made
Oksanka [162]
<span>Segregation

For a trait to show or express itself in an individual it must have two types of the same allele (for example P and p) showing on the chromosomes. The showing of both alleles on an offspring's chromosomes means that both parents have the same trait and that is why there is a chance for an allele to become dominant in other words to express itself in the offspring. However if only one allele is transferred in the genes of the offspring that means that the trait that the allele is responsible for, will remain unexpressed.</span>
4 0
3 years ago
The vatican archives maintain a vault where century's worth of old documents are stored in very high n2 levels to prevent oxidat
Vinil7 [7]

The Vatican archives stores multiple precious documents and books of the world. These old documents dating hundred of years are kept in high nitrogen levels, in order to prevent the oxidation of the paper (papyrus). The presence of the high level of inert nitrogen in the air in the archives prevents any kind of damage that may caused to the paper or the ink on those documents. This high level of nitrogen, however, may affect the health of the individual by decreasing the oxygen levels in the body.

Hence, the answer is 'the oxygen level will be decreased in the body'.

7 0
3 years ago
What is an abiotic factor that can prevent the organism from becoming preserved
NeX [460]

Answer:

Groundwater.

Explanation:

Groundwater in this case is the primary abiotic factor that inhibits  organism from being preserved after been buried. After being buried, decomposers here becomes the biotic factors that eat up dead bodies.

It is also known that sedimentary basins encounters a certain change in its subsidence rate over time, and eustatic sea level changes continuously, causing depth to variations in groundwater and lakes, ocean temperature, spreading rates, continental collision and cracks, and sedimentation in ocean basins.

5 0
3 years ago
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