When you air enters the body through the or the from there it passes through the which forces air into the and food into the esophagus. the air travels down the trachea into two branching tubes called and then on into the

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How can you keep track of variables in a science experiment?

Which organelle breaks down sugar molecules that supply energy to the cell ?

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.