Tricuspid valve: located between upper and lower chambers.
Pulmonary valve: Found in arteries leaving heart.
Answer:
mitochondria and chloroplasts
Explanation:
the theory says that the bacteria which used oxygen and changed it to ATP molecules changed into mitochondria and those that used light energy to manufacture their own food changed into chloroplasts.this happened after the small prokaryotes which were bacteria were engulfed by the bigger prokaryotes of which some managed to survive and lived together through symbiosis hence the evolution to mitochondria and chloroplasts creating a eukaryotic cell.
Glycolysis. <span>This is where one 6-carbon molecule of glucose is broken down into two molecules of the three-carbon</span>
Yes. For example every tree that is cut down you can plant a tree so the tree will grow back.
