Explanation:
A microscope is a tool used to observe small objects in a larger size in order to see the details. The main difference between a compound and a simple microscope is the number of lenses, a compound microscope has two sets of lenses, meaning it has a higher magnification allowing the observation of more details and therefore is more adequate to observe cells.
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Answer:
Yes it is reflexes.
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Mesozoic
Cenozoic
Paleozoic
Precambrian
I believe it was the Paleozoic period
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Answer:
Groundwater protection must be a high priority in zones where contamination can easily enter the aquifer and affect a spring or pumping well used for the drinking water supply of a large population.
Explanation:
Groundwater protection has been addressed in most countries by issuance of different rules and regulations at national or local level that aim at preventing aquifer contamination. In this sense, laws have been issued to regulate the use and manufacture of toxic products, and set measures to manage the waste produced by industrial activities, and to properly place and maintain waste disposal and storage facilities (landfills, injection wells, storage tanks). Maximum allowable concentrations for some pollutants have been established, mainly in developed countries, to preserve a good quality of the groundwater exploited for drinking water supply. In addition, well-head protection areas and groundwater zone protection areas have also been defined in some developed countries to prevent pollution of drinking water sources.
Answer:
The bottom right is the correct answer.
Explanation:
A solar eclipse is the alignment of the sun, moon, and Earth.
B) the number of chromosomes in a population.
C)the amount of genetic variation in an individual.
D) the amount of genetic variation in population.
Answer:
it's D
Explanation: