Sickle-cell anemia is caused by a mutation in the gene encoding hemoglobin, causing red blood cells to appear half-moon shaped. pls answer :( correctly :

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should