Which organelles of a cell possess their own dna?
1. lysosome & plasma membrane

2. mitochondria and chloroplasts

3. the golgi apparatus and ribosomes

9. the history of life on earth is recorded in

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins