What is ozone? *
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(03) gas in the atmosphere that can protect the earth
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high density metals that can be harmful to the environment
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earth's temperature slowly rising due to large amount of co2 emissions
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any form of precipitation that is acidic and falls to the ground

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation