C, we went over this today.
Answer: True
Explanation:
Tuberculosis(TB) is most common in developing countries where many people live in absolute poverty, than in developed countries.
In underdeveloped and developing countries people lack proper education on the spread of tuberculosis, they live and work in poorly ventilated and overcrowded conditions, which provide ideal conditions for TB bacteria to spread.
In developing countries where people have limited access to healthcare system, people with HIV who are more susceptible to TB, lack proper healthcare suffer from malnutrition and can't build a resistance to the disease. In this conditions TB is bound to spread.
Developed countries have largely controlled TB by improving the life of it citizens, provision of healthcare, education etc
What is the name of the deepest layer of Earth, which is made of solid metals?
B
Answer:
The cartilaginous fish are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage rather than bone. Examples of the cartilaginous fish include sharks, rays, and skates
Explanation:
Theodor Schwann and Matthias Jakob Schleiden create the cell theory in 1830s