When define a function f(N) = sum of digits of N , expressed as decimal number. E.g. F(137) = 1 + 3 + 7 = 11 : Evaluate f(2^7 3^5 5^6) .

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#Question id: 2303

#Unit 2. Cellular Organization

During cell division spindle fibers attach themselves to the _______ located on the chromosomes.

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#Question id: 3768

#Unit 3. Fundamental Processes

After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?

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#Question id: 11297

#Unit 10. Ecological Principles

What is the difference between gross and net primary production?

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#Question id: 11470

#Unit 2. Cellular Organization

Active form of phytochrome is

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#Question id: 4221

#Unit 3. Fundamental Processes

The genetic code is essentially the same for all organisms. From this, one can logically assume which of the following statements to be true?