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kati45 [8]
3 years ago
8

Gaps in the myelin sheath are called

Biology
2 answers:
motikmotik3 years ago
8 0
It is called Nodes of ranvier
jeyben [28]3 years ago
4 0
The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier. Since fat serves as a good insulator, the myelin sheaths speed the rate of transmission of an electrical impulse along the axon.
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Wood deposits recovered from an archaeological site contain 36% of the C-14 they originally contained. How long ago did the tree
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Answer: It was obtained 8515 years ago

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) to find the rate constant:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5760}=0.00012years^{-1}

b) for completion of 36% of reaction

t=\frac{2.303}{k}\log\frac{100}{36}

t=\frac{2.303}{0.00012}\log\frac{100}{36}

t = 8515 years

The time was 8515 years.

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3 years ago
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The statement 'symbiosis is a relationship between organisms in which both benefit' is TRUE about this they of ecological interaction.

<h3>What is symbiosis?</h3>

Symbiosis is a particular class of ecological interaction in which both organisms are favored by this they of relationship.

Symbiosis examples include for example the association that involves clownfish and an anemone, which are both benefited by their interaction.

In conclusion, the statement 'symbiosis is a relationship between organisms in which both benefit' is TRUE about this they of ecological interaction.

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