Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

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#Question id: 3665

#SCPH05 I Biotechnology

Which of the following is true for Tandem-duplication mutations?

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#Question id: 10813

#SCPH06 I Botany

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

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#Question id: 4599

#SCPH28 | Zoology

Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.

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#Question id: 5847

#SCPH28 | Zoology

A Holliday structure is a(n)

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#Question id: 38

#SCPH05 I Biotechnology

Which of the following is capable of existing as a pair of enantiomers?