A lab technician needs to determine whether cells in a test tube are eukaryotic or prokaryotic. The technician has several dyes she could use to stain the cells. Four of the dyes are described in the
table below. Which dye could the technician use to determine whether the cells are prokaryotic or
eukaryotic?
Indicator Dye

A.
Acridine orange
B
Eosin
C.
Safranin
D.
Osmium tetraoxide

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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bioteacher101

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

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