In the nucleus, the cell copies the dna blueprint to rna. like dna, rna has four nitrogen bases, but in rna, the base replaces the base thymine.

a) alanine
b) guanine
c) uracil
eliminate
d) valine

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

Ais a group of individuals of the same that exist together in the same place at the same time