Which structure of a protein is in the amnio acid sequence?

A. primary

B. secondary

C. Tertairy

D. Quaternary

Please help!

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 buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.