how does an amino group, a carboxyl group, and a hydrogen atom make new molecules? and what type of molecules are made?

The influenza virus cause the flu, but not other diseases. why?

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases