Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.
Answer:
The correct answer is bronchioles.
In low light no plants grow. With no plants no animals can eat so less animals remain or stay there. With less animals less animals respire and breathe out CO2.
↪ Adding exercise and meditation in your life to reduce heart problem.
↪Avoiding grilled red meat ,smoked foods , microwaved foods,etc.
↪ Searching the reason to live the life maybe it could be related with your passion and aim in your life.
↪ Try creating happy and lovely atmosphere around where you can laugh,enjoy and live the life with full intensity.
↪ Avoid anything that is carcinogenic or cancer causing. You can search it on your own.
↪Seek medical advice from doctors regarding this topic