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: 10389

#6. System Physiology – Plant

The amount of light absorb by the plant per square meter (µmol m–2) known as

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#Question id: 4389

#3. Fundamental Processes

Regulation of transcription by steroid hormones

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#Question id: 348

#1. Molecules and their Interaction Relevant to Biology

Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will ________.

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#Question id: 24180

#Aptitude

A cat’s whiskers are among the most perfect organs of touch.

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#Question id: 4976

#11. Evolution and Behavior

Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?