Which of the labeled structures is an adaptation that is primarily responsible for helping a paramecium control its water balance? Paramecium diagram
A. Structure A
B. Structure B
C. Structure C
D. Structure D

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane

20 how are energy cycles and growth cycles related?