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The answer is CONFEDERECY ....
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Answer:
2.23 days
Explanation:
Given that;
N=Noe^-kt
Where;
N= number of radioactive nuclei present at time =t
No= number of radioactive nuclei originally present
k = decay constant
t = time taken
But k = ln2/T
Where T is the half life of the radioactive nuclei
Hence;
NA= Noe^-ln2t/TA (1)
NB= Noe^-ln2t/TB (2)
But NA =2.44NB
2.44NB = Noe^-ln2t/TA (3)
NB= Noe^-ln2t/TB (4)
Divide (3) by (4)
2.44NB/NB = Noe^-ln2t/TA/Noe^-ln2t/TB
2.44 = e^-ln2t/TA + ln2t/TB
Taking natural logarithm of both sides
ln2.44 = -ln2t/TA + ln2t/TB
Given that TB = 1.14 days
TA= -ln2t(ln2.44 -ln2t/TB )^-1
TA= -(2.079) (0.892 - 2.079/1.14)^-1
TA = 2.23 days
Answer:
Punnett squares are not exact answers, they are only used to predict traits.
Answer:
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
Explanation:
Answer:
According to the theory of <em>endosymbiosis</em> , mitochondria in cells today are the descendants of aerobic prokaryotes that used oxygen to generate energy.
Explanation:
Endosymbiosis is an evolutionary theory which explains how eukaryotic cells evolved from prokaryotic cells. The theory of endosymbiosis states that mitochondria were once prokaryotes. They could carry out aerobic respiration and used oxygen to produce energy. With the passage of time, the bigger prokaryotes engulfed the smaller prokaryotes like the mitochondria. Mitochondria have their own DNA which proofs the hypothesis that they were once individual prokaryotic cells. Organelles like mitochondria, chloroplast and plastids support the theory of endosymbiosis.
