Succession is important because it leads to mature and stable communities. The purpose of succession is for an ecosystem to reach balance state right after it is formed or after it is disturbed by man or some disasters. It will increase biodiversity and help to prevent the desertification.
Answer: They are called autotrophs.
To study the Blood-Brain Barrier requires that research involves the use of subjects such as guinea pigs, rabbits, or even humans. The research would involve conducting different treatments with different substances to check which their movement or effect on this barrier. The research may also involve opening up or severing of the brain for analysis. This, will, therefore, raise ethical issues on the use of human subjects, and the respect for human dignity and bodily integrity. The research would have to comply with the ethical rule of non‐maleficence which may limit the frontiers of the research hence limit its success.
Your answer would be B. "Golgi apparatus"
