Microscopes Electron
Light
Beams of electrons
Visible light
Radiation
type
Magnification
Radiation
focused by
Typically up to x1000
approx x100,000 in SEM approx X250,000 in TEM
Electromagnets
Lenses usually glass lenses
0.5 nm
200 nm
Resolution
Cells &
Tissues
Not possible to view any living material
Living or dead, can watch living processes
take place
Simpler preparation staining usually
required
Harsher preparation procedures
Specimen
prep
Image
formed by
Image
formed on
Light
Selective absorption of electrons by the specimen.
Human eye can view real image directly by image is formed by projecting focussed image of specimen onto surface
looking into the eyepiece
coated with electron-sensitive compounds
There are advantages and disadvantages to both types of microscopes Compare and contrast the two types outlined here. What
evidence supports a DISADVANTAGE of the transmission electron microscope?
A
The beam of electrons used in the transmission electron microscope often
damage the delicate specimens being observed.
B
The transmission electron microscope magnifies specimens to a much
higher degree than an optical microscope and therefore requires a very
thin specimen
The transmission electron microscope requires that specimens be put
inside a vacuum chamber so the microscope cannot be used to observe
Living specimens
The typical electron microscope can zoom in at only a few discrete levels
and often specimens are best observed at intervals not reached with this
microscope

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

where is the diagram?

if you insert the diagram ill be able to you

hey, what do you need . just post the question and i may be able to you : )

a fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.[1] the age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years.[2] fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.[3] other commonly used derivatives include kerosene and propane. fossil fuels range from volatile materials with low carbon to hydrogen ratios like methane, to liquids like petroleum, to nonvolatile materials composed of almost pure carbon, like anthracite coal. methane can be found in hydrocarbon fields either alone, associated with oil, or in the form of methane clathrates.

the theory that fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the earth's crust over millions of years was first introduced by andreas libavius "in his 1597 alchemia [alchymia]" and later by mikhail lomonosov "as early as 1757 and certainly by 1763".[4] the first use of the term "fossil fuel" was by the german chemist caspar neumann, in english translation in 1759.[5]

in 2017 the world's primary energy sources consisted of petroleum (34%), coal (28%), natural gas (23%), amounting to an 85% share for fossil fuels in primary energy consumption in the world.[6] non-fossil sources in 2006 included nuclear (8.5%), hydroelectric (6.3%), and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%.[7] world energy consumption was growing at about 2.3% per year. in 2015 about 18% of worldwide consumption was from renewable sources.[8]