Biology, 18.02.2021 23:40, jasminecoronetti44
Chromosomal mutations are changes in the normal structure or number of chromosomes. Changes in chromosome structure can result from errors in meiosis or from exposure to radiation or other damaging agents. Certain changes in chromosome number can result from nondisjunction during either meiosis or mitosis. Both structural mutations and nondisjunction can play a role in trisomy 21, commonly known as Down syndrome.
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Biology, 21.06.2019 23:00, linag969p9xeno
Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.
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Biology, 22.06.2019 00:10, rameseshajj
Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase
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Biology, 22.06.2019 01:00, saggirl1209
The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity
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Chromosomal mutations are changes in the normal structure or number of chromosomes. Changes in chrom...
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