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8090 [49]
3 years ago
5

Can some one help me please​

Biology
1 answer:
barxatty [35]3 years ago
7 0

the answer is A because restriction enzymes function in cutting strand of DNA at specufic sites

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The Earth comprises many spheres of subsystems, which associate with each other to develop a composite and spontaneously changing system of the Earth. The processes taking place in the system of the Earth occurs on spatial scales changing from fractions of millimeters to thousands of kilometers, and on time scales, which varies from milliseconds to billions of years.  

The examples of instantaneous scales are a rotation of the Earth, breathing, an earthquake.  

The examples of long-term scales are making coal and plate tectonics.  

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Volcanoes discharge a huge concentration of particulate matter into the atmosphere. These particles function as nuclei for the development of droplets of water (hydrosphere). The rainfall, that is, hydrosphere usually upsurges after an eruption, initiating growth of the plant (biosphere). Thus, volcanoes and volcanic activities are a good illustration of system interactions.  


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