1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kisachek [45]
3 years ago
10

What is the difference between a light microscope and an electric microscope?

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
3 0
Light microscope<span> uses </span>light<span> to illuminate specimens and glass lenses to magnify images whereas an </span>electron microscope<span> uses a beam of </span>electrons<span> to illuminate specimens and magnetic lenses to magnify images. 

The resolution of electron microscope is very high is compared to that of light microscope. It means, for very small objects like nucleus of cell, virus, we can use electron microscope instead of light microscope.

Hope this helps!

</span>
You might be interested in
Describe the effects of the increase in temperature over the past 100 years.
Bezzdna [24]

Global surface temperature has been measured since 1880 at a network of ground-based and ocean-based sites. Over the last century, the average surface temperature of the Earth has increased by about 1.0o F. The eleven warmest years this century have all occurred since 1980, with 1995 the warmest on record. The higher latitudes have warmed more than the equatorial regions.

Beginning in 1979, satellites have been used to measure the temperature of the atmosphere up to a height of 30,000 feet. The long-term surface record and the recent satellite observations differ, but that fact is not surprising: the two techniques measure the temperature of different parts of the Earth system (the surface, and various layers of the atmosphere). In addition to this, a variety of factors, such as the presence of airborne materials from the 1991 eruption of the volcano Mt. Pinatubo, affect each record in a different way. Satellite observations were initially interpreted as showing a slight cooling, but more recent analyses accounting for natural, short-term fluctuations imply warming, just as the ground-based measurements have indicated over a longer time period. As more data from the satellite record become available, and as the quality of measurements is improved, comparison of these two records should yield additional insights.

A warmer Earth speeds up the global water cycle: the exchange of water among the oceans, atmosphere, and land. Higher temperatures cause more evaporation, and soils will tend to dry out faster. Increased amounts of water in the atmosphere will mean more rain or snow overall. We may be seeing the first signs of changes in the water cycle. Since the beginning of the century, precipitation in the United States has increased by about 6 percent, while the frequency of intense precipitation events (heavy downpours of more than two inches per day) has increased by 20 percent. Such events can cause flooding, soil erosion, and even loss of life. In some midcontinent areas, increased evaporation has led to drought because the heavy rains fell elsewhere.

There is also evidence that ecosystems are reacting to warming. Between 1981 and 1991, the length of the growing season in the northern high latitudes (between 45oand 70o N) increased by a total of up to twelve days, as documented by satellite imagery. Greening in spring and summer occurred up to eight days earlier, and vegetation continued to photosynthesize an estimated four days longer.

Global mean sea level has risen 4 to 10 inches over the last 100 years, mainly because water expands when heated. The melting of glaciers, which has occurred worldwide over the last century, also contributes to the rise. Formerly frozen soils (permafrost) in the Alaskan and Siberian arctic have also begun to melt, damaging both ecosystems and infrastructure. Melting and tundra warming will also lead to decay of organic matter and the release of trapped carbon and methane, creating an additional source of greenhouse gases.


3 0
3 years ago
Where on earth is the only location that the sun can ever be directly overhead?
Elanso [62]

Answer: the two tropics zones

Explanation:

Between the two tropics zones, which includes the equator, the Sun is directly overhead twice per year. Outside the tropic zones, whether to the south or north, the Sun is never directly overhead. Two other significant lines of latitude are the Arctic Circle (around the North Pole) and the Antarctic Circle (around the South Pole).

4 0
2 years ago
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
liq [111]

Answer:

The Cornea

is the answer

4 0
2 years ago
What process accounts for species diversity?
Alex_Xolod [135]
Meiosis is the process that accounts for diversity.
3 0
2 years ago
Read 2 more answers
how does the process of meiosis, independent assortment, and allele segregation affect the characteristics that offspring inheri
mafiozo [28]

Answer:

It results in the production of new combinations of alleles due to which offspring can have different characters than both the parents.

In meiosis, the genes are randomly segregated and the alleles of genes are independently assorted to produce haploid gametes.

When the gametes of male and female fuses, they form the zygote with a unique or new combination of alleles as compared to that of parents.

It increases the genetic variations in the population.

7 0
3 years ago
Other questions:
  • A measure of the size of an effect in a population is called
    13·1 answer
  • What would happen to a cell if its mitochondria were removed?
    10·2 answers
  • The canal that was dug to rechannel water to the Everglades failed to improve the wetlands habitat because
    11·1 answer
  • Why is topsoil crucial for agriculture
    10·1 answer
  • Seasonal wildfires often destroy a large areas of vegetation in western states, Such as California and Arizona. What type of veg
    11·2 answers
  • What type of boundary recycles crust into the mantle?
    13·1 answer
  • What food chain and web component is a worm in
    12·1 answer
  • Imagine that a team of scientists test a certain hypothesis, and the experimental results show that it is false. How will
    5·1 answer
  • The principal gas in the biogas produced in a landfill is
    12·1 answer
  • Suzie notices that she always sees red cars pulled over getting tickets and wonders if red cars really do get more tickets than
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!