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Vinil7 [7]
3 years ago
5

What should all specimen drawings be done with?

Biology
2 answers:
const2013 [10]3 years ago
8 0
A biological drawing, in contrast, should only be made while actually looking at a specimen. It should be done only with sharp, simple pencil lines on white paper, without any shading or sketching. It should be done slowly and carefully, looking at the specimen every few seconds to ensure that the drawing is accurate.
Inga [223]3 years ago
3 0

Answer: a sharp pencil line on white unlined paper.

Explanation:

Drawing is a very important skill in biology and is considered a type of data collection because drawings help to record data from specimens. Drawings can highlight the important features of a specimen. A drawing is the result of a long period of observation at different depths of focus and at different magnifications.

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ECG wave that causes ventricles to contract
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S-T segment of ECG shows ventricles contraction.

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The ECG is used to measure the electrical signals that controls the contraction and relaxation of heart, most commonly known as heart rhythm. S-T segments are the region after the QRS wave in ECG which is further followed by T waves. The S-T segment is generally shown as a straight line as no electrical signal pass through it and this is the time when ventricles contraction in the heart takes place.

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https://www.eartheclipse.com/pollution/primary-causes-of-air-pollution.html

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Which property of matter does the intrument measure
vaieri [72.5K]

Explanation:

Instruments are designed and calibrated to take measurement of certain properties in the environment.

Most scientific instruments measures quantitatively, a wide range of physical and chemical properties.

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learn more:

Measurements brainly.com/question/11155478

#learnwithBrainly

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