Identify the characteristics that describe how human proteins are assembled. Check all that apply. A. Amino acids are precisely ordered.
B. Each protein is a polypeptide of at least three amino acids.
C. Amino acids consist of two components: an amino group and an acid group.
D. Human proteins are coded by combinations of twenty different amino acids.
E. Essential amino acids must be ingested in the diet because they are not produced in the body.
F. The sequence possibilities are huge in terms of how amino acids can combine.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

particle   p is an electron and particle q is a neutron