Which structure permits the diffusion of insulin from the blood to fibroblasts

Explanation:

Insulin transport from the bloodstream to its target cells requires transport across a vascular endothelial barrier. This step is regulated by many factors, including pericytes. Similarly, insulin transport from β-cells to the bloodstream requires efficient access to the vasculature.

videntify 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.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs