When the Ca2+ levels drop: Myosin LC is dephosphorylated by MLC phosphatase, causing muscle relaxation.

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#Id: 1449

#Unit 4. Cell Communication and Cell Signaling

Gap junctions permit the passage of molecules as large as 1.2 nm in diameter (molecules smaller than 1200 Da).

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#Id: 4593

#Unit 13. Methods in Biology

Flow cytometry is majorly used with fluorescence dyes and attached antibodies for cells and dyes.

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#Id: 5368

#Unit 10. Ecological Principles

The simplest method to measure population density is to visually count the number of organisms in a population in a given habitat.

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#Id: 7073

#Unit 3. Fundamental Processes

This rejection of noncognate tRNAs at a stage of the reaction that precedes the synthesis of misacylated tRNA is sometimes referred to as kinetic proofreading.

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#Id: 8541

#Unit 1. Molecules and their Interaction Relevant to Biology

The dependent variable is the rate of the reaction. 

The independent variables are the concentration of enzyme, the concentration of the substrate, the temperature, and the addition of an inhibitor