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Lisa [10]
3 years ago
6

Which is the most energy-dense fuel? biomass wind fossil fuels nuclear fuels

Biology
1 answer:
Bond [772]3 years ago
5 0

Answer:

biomass

Explanation:

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Watson and Crick's model of DNA replication is called
alex41 [277]

Answer:

(B) semiconservative.  

Explanation:

According to the model proposed by Watson and Crick, the DNA molecule consists of two polynucleotide chains arranged on a helix around an imaginary axis, rotating to the right (a double helix). That is, the DNA molecule is in the shape of a spiral staircase, in which the "steps" are made up of nucleotide nitrogen bases and the "handrails" are covalently linked phosphate and sugar - so it is said that DNA is shaped like a helical ribbon. Also according to Watson and Crick DNA replication is semi-conservative, because each strand of DNA will give rise to another strand that will be complementary to its nucleotides.

8 0
4 years ago
A hiker crosses topography near the sea that has low elevation and low relief and then climbs up steeply to reach a peak.
Anuta_ua [19.1K]

Answer: mountain and coastal plains

Explanation: i just took the exam

6 0
3 years ago
Stan has been extremely afraid of cats since he was scratched as a 5-year-old. Whenever he sees a cat, he remembers the time he
slamgirl [31]

Answer:

amygdala?

Explanation:

The amygdala (Latin, corpus amygdaloideum) is an almond-shape set of neurons located deep in the brain's medial temporal lobe. Shown to play a key role in the processsing of emotions, the amygdala forms part of the limbic system.

6 0
3 years ago
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What characteristics do mutations have?
Zielflug [23.3K]

Mutations are positive occasionally, beneficial occasionally and omission of information.

Answer: Options 1, 3 and 4.

<u>Explanation:</u>

Mutations are more or less permanent changes. These changes are heritable in the phenotype of an individual. These changes occur because of the alteration in the number, kind or the sequence of nucleotide of the genetic material which is DNA in most of the cases.

Mutations occur at some times in the life of people and they are present in only some cells of the human body. They are not present in all the cells of the human body. These changes can also occur because of environmental factors like ultraviolet radiation from the sun.

7 0
3 years ago
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Low levels of _____ in the brain have been linked to alzheimer's disease.
Bess [88]
Acetylcholine.......
4 0
3 years ago
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