The answer is true because walking does not affect the environment
Refined carbohydrates are digested faster, leading to a fast rise in blood glucose levels.
Refined carbohydrates have a higher glycemic index than processed whole grains. That's because of their simple chemical structure, leading to powerful spikes in blood
sugar and insulin secretion. This immediate impact can lead to an increased risk for type 2 diabetes, overweight and heart disease.
Reproductive isolation must happen
The right answer is vein (it contains blood and has valves).
The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.
DNA in prokaryotes are not bounded by Nuclear Memberane !! It is scattered all over cytoplasm !!
