T3 and T4 thyroxin leads to negative feedback loop by inhibiting the TRH and TSH, but these negative feedback regulation is prevented in case of___ 

I- Hypothyroidism

II- Thyrotoxicosis 

III-TSH and I deficiency

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#Question id: 4578

#Zoology

Which definition of evolution would have been most foreign to Charles Darwin during his lifetime? 

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#Question id: 4579

#Zoology

About which of these did Darwin have a poor understanding?

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#Question id: 4580

#Zoology

In modern terminology, diversity is understood to be a result of genetic variation. Sources of variation for evolution include all of the following except

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#Question id: 4581

#Zoology

The Linnaeus classification system grouped organisms by ________.

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#Question id: 4582

#Zoology

 Fossils found in strata reveal that ________.

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#Question id: 4583

#Zoology

Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is ________.