Different types of cells in the body have different organells depending on their main function. Considering this which type of cells would have the most mitochondria? A. Red blood cells
B. Bone cells
C. Muscle cells
D. Nerve cells
E. Skin cells

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Compare the composition of the moon's surface with the composition of the earth's surface.