The membrane potential in which there is no net movement of the ion across the membrane is called the ________.

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#Question id: 4175

#3. Fundamental Processes

The initiation codon __.

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#Question id: 18073

#11. Evolution and Behavior

During which geological period was there an first definite evidence of land plants and algae dominant of many plants?

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#Question id: 317

#1. Molecules and their Interaction Relevant to Biology

Hydrogen bonds can occur when hydrogen is covalently bonded to atoms like nitrogen and oxygen. What property of nitrogen and oxygen is important for this?

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#Question id: 3285

#11. Evolution and Behavior

Natural selection continually operates on each species to keep up with improvements made by competing species; each species’ environment deteriorates as its competitors evolve new adaptations. This is known as

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#Question id: 8964

#9. Diversity of Life Forms

Phylogenetic trees are best described as