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LenKa [72]
3 years ago
9

A geologist is examining a sample made up of pyrite, iron, and an unidentified substance. Which of the following best describes

the sample?
A. Mineral
B. Organic substance
C. Inorganic substance
D. Rock
Biology
1 answer:
pochemuha3 years ago
4 0
I will say that the answer to your his question is letter A
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(https://www.cliffsnotes.com/study-guides/anatomy-and-physiology/the-respiratory-system/gas-transport)

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The condition of earth in 20 years
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If there is a logarithmic relationship between stimulus intensity and action potential frequency in sensory neurons, how much wi
frez [133]

Answer:

The action potential rate will be doubled

Explanation:

The logarithm of a number for a given base is the power to which the base must be raised to give the number. Logarithm of a number can be in different bases. The base of common logarithm is the base 10.

For example, logarithm of 1000 to base 10 is 3 because 10 raised to power 3 equals 1000

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Therefore, if there is a logarithmic relationship between stimulus intensity and action potential frequency in sensory neurons and the stimulus intensity increases by 100, the action potential rate will increase thus:

Log₁₀100 = 2

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