Is a polymer with a complex structure.
a. glucose
b. dna
c. alcohol
d. phosphorus

The zone, which exists from a depth of 0 to 600 feet, is home to the majority of ocean life.

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).

The organelle pictured is found in cells of and is theorized to have once been an independent organism.