Answer:
The answer is given below in detail.
Explanation:
When a smoker continues smoking for years, the lungs develops cancer. The lung cancer progresses in the following order:
- The cell lining of the bronchi thickens and forms callus.
- After this step, cilia are lost
- Cells with atypical nuclei starts to appear
- After this tumor is formed
- In the final step, metastasis occur.
Decomposers (fungi) secrete digestive enzymes that breakdown dead and waste materials into simple, inorganic materials, which are subsequently absorbed by them.
Answer:
The second picture showing big rocks with the gaps between where they touched empty.
Explanation:
The figure shown in picture 2 will be the most porous as it does not comprise of any blocking particles. I t will be well sorted and will allow small molecules to easily pour through it.
On the other hand, the other figures like figure 3 will not have much porosity as the path is blocked by many large and small rocks in the image. Hence, it is not the correct option.
Answer:
A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.
Explanation:
its A
