Which type of wave forms at the boundary between air and water when you drop a rock into a pond?

Witch type of microscope is used to view very small cell components like proteins and dna?

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

Can a trait be both polygenic and have multiple alleles? explain why or why not.