The half-life (t1/2) of a first-order reaction is 0.100 s. What is the rate constant?

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#Question id: 1644

#Section 2: General Biology

What is the single best defining feature of a lymphocyte?

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#Question id: 1861

#Section 2: General Biology

Paroxysmal nocturnal hemoglobulinuria results from deficiency in:

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#Question id: 14579

#Section 2: General Biology

Organisms may derive energy from

A. sunlight.

B. metabolizing chemical compounds.

C. little tiny batteries.

D. temperature gradients.

Which combination from the following is correct?

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#Question id: 15611

#Section 1: Engineering Mathematics

If A=   the value

A² - 5A + 7I

 

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#Question id: 27250

#Section 3: Genetics, Cellular and Molecular Biology

DNA exists in a double-stranded form whereas RNA is mainly a single stranded molecule. What is the likely reason for DNA being double stranded?