There are 20 amino acids but 64 mrna codons. for what are the other 44 codons used?

Select the correct answer from each drop-down menu proteins are

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down

How has technology been used to address issues related to sewage? o a. sewage treatment plants use bacteria to clean water and solid waste before releasing it into the environment. o b. sewage treatment plants heat water to kill bacteria. o c. sewage treatment plants use landfills to filter and clean water and solid waste before releasing the water into the environment. o d. sewage treatment plants cool water to kill bacteria.