Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation?

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#Question id: 684

#SCPH05 I Biotechnology

Protein subunits in a multisubunit protein are held to each other primarily by

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#Question id: 15702

#SCPH06 I Botany

Following are few sterilization techniques and materials used in plant tissue culture. Identify the correct combinations.

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#Question id: 11145

#I Life Science/ Life Sciences Group – I-V

Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.

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#Question id: 18382

#SCPH01 Biochemistry

Which bacterial enzyme has been transferred to Arabidopsis thaliana which can absorb mercury, and it reduces to volatile Hg from the leaf surface. 

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#Question id: 385

#SCPH05 I Biotechnology

In which reaction below does water not participate as a reactant (rather than as a product)?