The correct response is:
The blood vessels enable direct oxygen uptake and carbon dioxide release through the skin; if their skin dries out, cutaneous respiration would be impaired, affecting their oxygen intake.
Frogs have a process called cutaneous respiration, where they can absorb oxygen and expel carbon dioxide directly through their skin. The network of blood vessels in their skin facilitates this gas exchange. If the skin dries out, this process would be compromised, leading to reduced oxygen intake and potentially harmful effects on the frog's physiology.