Which of the following statements is true? a/the ventricles receive blood from the body. b/the atria pump oxygen-rich blood to the body. c/blood in the heart only flows one-way. d/ the heart is the largest organ in the body

Agene in a type of bacteria when the ses bacteria reproduce asexually this mutation can only be inherited by

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?