Answer:
1. The correct answer would be A) allow you to view living cells, while electron microscopes do not.
There are many advantages of light microscope over electron microscope such as:
2. The correct answer would be C) scanning electron microscope
Scanning electron microscope or SEM is a type of electron microscope which is used to observe surface topography and composition of the specimen. It can achieve resolution of up to 1 nanometer.
3. The correct answer would be 400x
The total magnification of the microscope can be calculated by multiplying the powers of the objective lens and that of the eye lens.
Thus, the magnification of the specimen would be 40*10 = 400x.
1. The correct answer is A) allow you to view living cells, while electron microscopes do not. Light microscopes use visible light to illuminate specimens, which is less damaging to living cells compared to the electron beams used in electron microscopes.
2. The correct answer is C) scanning electron microscope. Scanning electron microscopes (SEMs) are commonly used to study the details of protein molecules on the surface of cells. SEMs provide high-resolution images of the surface topography by scanning the specimen with a focused beam of electrons.
3. To calculate the total magnification of a compound light microscope, you multiply the magnification of the objective lens by the magnification of the ocular lens. In this case, the objective power is 40x, and the ocular lens power is 10x. Therefore, the magnification of the specimen viewed with this compound light microscope would be 40x * 10x = 400x. So, the correct answer is C) 400x.
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Answer:
Early organisms in the precambrian era converted ___Carbon dioxide__ to oxygen.
Explanation:
THE PRECAMBRIAN ERA:
The word Precambrian means before the Cambrian period. Before the formation of oldest rock with having fossils in them this term was used to the whole period of earth's history.
This era gone through number of important changes. One important change is that atmosphere of this era is deprived of Oxygen. All other content of the atmosphere is same as component of air present today but with little water vapours. Early organisms in the precambrian era converts carbon dioxide into oxygen. This oxygen was very less and begins to combine chemically with iron and other elements. This produces great mineral deposits around the world. This is the era from where aerobic respiration organisms start their life cycles.
b. Wheat and corn are common products of tropical plantations.
c. Most crops from tropical plantations are exported.
d. Cocoa, coffee and tea are common products of tropical plantations.
The right option is; b.
Wheat and corn are common products of tropical plantations is not true concerning tropical plantations.
Tropical plantations is a type of agriculture in which perennial plants are grown for several years. Tropical plantations are usually practiced in regions with humid, tropical climates and plants such as cocoa, coffee, tea, coconut, rubber and oil palm are the common crops that are cultivated. The crops are mostly exported and they serve as important source of income. Wheat and corn are not common products of tropical plantations .
Answer:
B
Explanation:
Answer:
Well in the beginning there was no fire soo nothing destroyed the earth
Any primary succession means occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.
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Explanation: