The main useful metal found in the ore called bauxite is?

How does the study of genetic disorders such as pku biologists understand normal alleles?

Homo heidelbergensis was a tall, muscular hunter, who used both tools and weapons. because h. heidelbergensis was not a gatherer/forager, but ate a varied diet including meat and fish, we would expect to see what anatomical changes?

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?