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Dangerous conditions influencing sport injuries include all answers which you've mentioned (overuse, overexertion, and incorrect technique). It doesn't, however, include practicing and drills - d.
Practicing and drills is the thing which would help us become more profficient at a certain task and eventually sport through it.
Meats,protiens,vegetables,grains
Male reproductive system produce sperm which fertilize the ovum of female to form diplod zygote and this zygote multiplies and multiplies and finally forms a baby
