Organization in which different cells are specialized for different functions, but each cell works alone, is characteristics of
a. cell-level organization
b. tissue-level organization
c. organ-level organization
d. organ system-level organization

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?

The cluster of developing cells from conception until birth is called an

Explain how organisms could be harmed by high levels of salt from roadways?