A baseball in motion is acted upon by four directional forces as shown What must be true of the forces for the baseball to continue to move in the same direction with the same speed?

the backbone of the dna and rna compound is sugar phosphate.

answer; cnidarians;

during expiration the diaphragm relaxes, which causes the diaphragm to move downwards. the contraction of diaphragm increases the space for expansion of lungs. hence, the diaphragm relaxes and positioned downward during expiration.