Final answer:
Hypoxia is a condition when there is a lack of oxygen reaching tissues. Anemia and genetic diseases like sickle cell anemia and thalassemia can cause hypoxia by reducing the delivery of oxygen to tissues.
Step-by-step explanation:
Hypoxia refers to the condition when there is too little oxygen getting to tissues.
One example of a deficiency disease that can cause hypoxia is anemia, which is a disorder characterized by an inadequate volume of red blood cells. Red blood cells are needed to carry oxygen to cells, so when there are not enough of them, tissues may not receive sufficient oxygen.
Other conditions that can lead to hypoxia include vessel narrowing, which reduces blood flow and oxygen supply to the tissues, and certain genetic diseases like sickle cell anemia and thalassemia, which decrease the blood's ability to deliver oxygen.