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kondaur [170]
3 years ago
7

American scientist, Linus Pauling, was one of many scientists racing to discover the molecular structure of DNA. Pauling initial

ly thought that the molecule was a triple helix. Later, James Watson and Francis Crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape.
Why did Watson and Crick succeed when Pauling failed?​
Biology
1 answer:
Ann [662]3 years ago
5 0

Answer:

Watson and Crick were able to develop a more accurate molecular structure because they had access to x-ray crystallography! Pauling didn't actually failed, he just did't have the same means!  

Explanation:

By the way, is now known that the real discovery of DNA molecule was made by Rosalind Franklin. Any doubts you can send me a message!

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Is the vagus nerve the heart rate centre of the brain?
koban [17]

Answer:

The vagus nerve has two bunches of sensory nerve cell bodies, and it connects the brain stem to the body. It allows the brain to monitor and receive information about several of the body’s different functions.

Explanation:

The vagus nerve is the longest and most complex of the 12 pairs of cranial nerves that emanate from the brain. It transmits information to or from the surface of the brain to tissues and organs elsewhere in the body.

There are multiple nervous system functions provided by the vagus nerve and its related parts. The vagus nerve functions contribute to the autonomic nervous system, which consists of the parasympathetic and sympathetic parts

The vagus nerve has a number of different functions. The four key functions of the vagus nerve are:

-Sensory: From the throat, heart, lungs, and abdomen.

-Special sensory: Provides taste sensation behind the tongue.

-Motor: Provides movement functions for the muscles in the neck responsible for swallowing and speech.

-Parasympathetic: Responsible for the digestive tract, respiration, and heart rate functioning.

7 0
3 years ago
HELP! 10 Points for greatest answer!
bixtya [17]

Answer:

The Amazon is a critical absorber of carbon of carbon dioxide, a greenhouse gas produced by burning fossil fuels, like oil and coal. ... The Amazon absorbs 2 billion tons of CO2 per year (or 5% of annual emissions), making it a vital part of preventing climate change.

Explanation:

8 0
2 years ago
A student made a model of a eukaryotic cell using the resealable plastic bag shown. She placed a golf ball inside the bag.
jek_recluse [69]
Answer:

Its either A or B

explanation:

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6 0
2 years ago
Ture or false proofs of the Resurrection are few
lutik1710 [3]

Answer:

False

Explanation:

There are many documents and records of the Resurrection. In addition, there were also many eye witnesses because Jesus appeared to many after his Resurrection.

6 0
3 years ago
Please help, I’ll give brainliest.
Margarita [4]

Answer:

it involves a physical exchange of chromosome segments in the tetrad (3)

Explanation:

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4 0
2 years ago
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