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Tanya [424]
2 years ago
8

Which antibody class was produced first in this sequence of events

Biology
1 answer:
morpeh [17]2 years ago
7 0

Answer:

IgM

Explanation:

........ ............ .

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A geologist is studying two different rhyolite flows to determine if they were erupted at the same time.
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x = 50% = 50/100 = 0.5

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log((1/2)ⁿ) = log(0.5)

n * log(1/2) = log(0.5)

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n = log(0.5)/log(0.5)

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Q10. The answer is 2.


It can be calculated using the equation:

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x - decimal amount remaining, 

n - a number of half-lives.


Rhyolite #2 has 25% of the parent H remaining:

x = 25% = 25/100 = 0.25

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(1/2)ⁿ = 0.25

log((1/2)ⁿ) = log(0.25)

n * log(1/2) = log(0.25)

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n = -0.602 / - 0.301

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A number of half-lives (n) is a quotient of total time elapsed (t) and length of half-life (H):

n = t/H

n = 1

t = ?

H = 100 000 000 years


n = t/H

t = n * H

t = 1 * 100 000 000 years

t = 100 000 000 years<span>

</span>

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