Solve. -Glenn and Paula Want to Dig an Irrigation Channel for for Their

question 238

Multiple Choice

Solve.
-Glenn and Paula want to dig an irrigation channel for their garden. Together it takes them 1.8 hours to dig an appropriately sized irrigation channel. If Paula can dig the channel by herself in 2.7 hours, how long would it
Take Glenn to dig the channel by himself? (Round your answer to the nearest tenth of an hour, if necessary.)

• A) 5.4 hr
• B) 4.5 hr
• C) 0.9 hr
• D) 3.6 hr

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Definitions:

Nucleus

The membrane-bound organelle in eukaryotic cells that contains most of the cell's genetic material.

Electron Micrograph

A photograph or image obtained by using an electron microscope, which uses a beam of electrons to create an image of the specimen.

Black and White

A category or concept typically used in photography, art, and media to describe images or scenarios that lack color, consisting only of shades of black and white.

Cell Fractionation

The technique used to separate the components of cells by subjecting them to centrifugal force. See differential centrifugation and density gradient centrifugation.