The concentrations of ions are very different inside and outside a nerve cell due to ________.

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#Question id: 4607

#XL - T Zoology

Members of two different species possess a similar-looking structure that they use in a similar way to perform about the same function. Which of the following would suggest that the relationship more likely represents homology instead of convergent evolution?

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#Question id: 5761

#XL - S Microbiology

E. coli cells were spread on an agar plate, producing 1000 colonies.  The colonies are replica plated on two agar plates containing the antibiotic kanamycin and one agar plate without antibiotics.  All of the colonies are able to grow on the agar plate without antibiotic but only 4 colonies are able to grow on each of the agar plates containing kanamycin.  You notice that the four colonies that grew on each of the kanamycin containing plates are in the exact same position.  This demonstrates

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#Question id: 20206

#XL - P Chemistry

If the speed of electron in Bohr first orbit of hydrogen atom be x, then speed of the electron in 3rd orbit is

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#Question id: 12026

#XL - T Zoology

Pepsinogen is converted to its active form in the stomach by ________.

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#Question id: 28140

#XL - U Food Technology

Caffeine in coffee is present in the range of