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crimeas [40]
4 years ago
12

How many valence electrons are in carbon.

Biology
1 answer:
SIZIF [17.4K]4 years ago
6 0
There are 4 valence electrons in an atom of carbon.  Carbon is in group 4A of the periodic table.  There are 6 electrons in a carbon atom but only 4 of them are valence.  carbon can never form more than 4 bonds and is unhappy with less than 4.
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3 years ago
Which five organs make up the vestibular system? A. Three semicircular canals and two otolith organs B. Two semicircular canals
enot [183]

Answer:

Option A

Explanation:

The vestibular system is a part of the inner ear that provides the most important contribution to the sense of balance and coordinating movement with balance. This system is made up of two parts which are the three semicircular canals and the two otolith organs. The two otolith organs are the saccule and the utricle. The utricle is sensitive to changes with regards to horizontal movement and the saccule provides information about vertical acceleration. They are able to do this due to their orientation in the inner ear providing spatial orientation with regards to movement and balance. the three semi circular canals includes the horizontl, poterior and the superior semicircular canals. they provide sensory inputs.

5 0
3 years ago
Read 2 more answers
Which of the following statements about telomerase is false? Which of the following statements about telomerase is false? Telome
zmey [24]

Answer:

Telomerase acts to elongate the 3' end of linear DNAs.

Explanation:

The 5' ends of the linear DNA can not be replicated by DNA polymerase due to the absence of free 3' end to be elongated. This is prevented by the action of telomerase enzyme which contains both RNA and protein components. The RNA component of the telomerase is 150 nucleotides long.

The telomerase enzyme elongates the 3' end of the template strand by using its inbuilt RNA template. Since it uses an RNA template to make the DNA copies, it is a reverse transcriptase. Repeated translocation and repositioning of the enzyme elongates the 3' end of the template DNA.

The RNA primase makes the RNA primer at the end of the new telomere strand which is then elongated by DNA polymerase. DNA ligase seals the nick. In this way, telomerase serves to prevent the loss of 5' ends of linear DNA in successive rounds of DNA replication.

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Iteru [2.4K]

Answer:

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Explanation:

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How did the research presented in the article affect scientists understanding of the evolution of eukaryotes
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Answer:

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Explanation:

Hope this helps

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