Which describes capillaries? A. Allow diffusion to occur. B. Are strong and flexible. C. Are made of three cell layers. D. Carry blood to the heart

D

Explanation:

carry blood to the heart

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.