What is the main function of the cell wall?
a. store carbohydrates for later use
b. provide rigid structure for cell
c. package proteins for export
d. carry out photosynthesis

Why is excretion necessary to maintain homeostasis?

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?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.