Scientific theory is a general explanation of natural phenomena developed through extensive and reproducible observations, more general and reliable than a hypothesis.

Then Every scientific theory starts as a hypothesis. A scientific hypothesis is a solution for an unexplained occurrence that does not fit into a currently accepted scientific theory. It must be based on careful rational examination of the facts.

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2 years ago

27. Dark-colored, relatively flat regions of the Moon's surface that were formed when interior lava filled large basins

Aleksandr-060686 [28]

Answer:

D) Sedimentary Rocks

Explanation:

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2 years ago

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Why is behavior considered to be a mixture of both nature and nurture?

Ainat [17]

Answer:

behavior is considered the result of an interaction of genes and environment. For example, the development of intelligence depends on both the genetic influences on the brain and the environmental influences that affect learning in the child. Nature and nurture work together in behavior

Explanation:

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2 years ago

If pyruvate-2-14C (pyruvate with the middle carbon atom radioactively labeled) is provided to actively respiring mitochondria, m

scZoUnD [109]

Answer:

The middle carbon atom of pyruvate in the TCA cycle becomes the carboxyl carbon of acetate and hence the newly added (upper) carboxyl group in citrate

Explanation:

Before entering the TCA cycle, pyruvate is converted into Acetyl-CoA by oxidative decarboxylation of pyruvate. 1st two carbons of glucose to be fully oxidized. This reaction is catalyzed by Pyruvate dehydrogenase.

The middle carbon atom of the pyruvate in the TCA cycle becomes the carboxyl carbon of the acetate as the carboxyl group is removed from the pyruvate , releasing CO2. NAD is reduced to NADH. Acetyl group is transferred to coenzyme-A , resulting in acetyl coA

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3 years ago