object and can magnify an image up to two million times with a very clear image
(”high resolution”).- Scanning electron microscopes(SEM) (Figure1.21) allow scientists to map the
surfaces of extremely small objects. These microscopes slide a beam of electrons across
the surface of specimen, producing detailed maps of the shapes of objects. - Scanning acoustic microscopesuse sound waves to scan a specimen. These micro-
scopes are useful in biology and medical research.
Figure 1.21: A scanning electron microscope. ( 6 )Other Life Science Tools
Whatotherkindsoftoolsandinstrumentswouldyouexpecttofindinabiologist’slaboratory
or field station? Other than computers and lab notebooks, biologists use very different