Which is a role of photosystem i in the light reactions?
o a. making nadp+
o b. splitting h20
o c. making naden
o d. making adp

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

This rapid change in species that rarely leaves behind fossil evidence is referred to as