The male hormone that declines slowly and steadily in most men until age 60 is known as

The answer is testosterone. Their levels are high during the teenage years. This is why teenage boys are more sexually active and can recover in short time after an orgasm. These levels continually drop with age at a rate of about 1-2% annually.

they are known to reach a speed of 21 miles per hour

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;