Which of the following is a developing nation? a) united states b) france c) ethiopia d) canada

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Does masterbation affect height growth or loss of growth hormone?