Answer:
A
Explanation:
The dead matter from organisms such as plants and animals that die need to be recycled so the nutrients in the matter are released and used up by other organisms. This is how sustainability is achieved in ecosystems through a cyclical nature of nutrients flow. Decomposition of the dead matter is done by decomposers such as fungi and bacteria. Without them, the dead matter would accumulate while the soil would lack nutrients for plants to grow and for other bacteria to utilize for energy. This would affect the rest of the food chain/web causing the ecosystem to collapse.
Atmosphere is the correct answer!
Answer:
The reason fat cells grow bigger could be because they live longer and have important long-term functions.
The image shows the process of mitosis. The replication of DNA happens at prophase of the mitosis process. This results in the duplication of the chromosomes This is followed by the segregation and division of the duplicated chromosomes into the two daughter cells. The same applies to the meiosis process where the DNA replication and duplication are followed in the same manner as mitosis. Hence the duplication of chromosomes happen at the beginning of both mitosis and meiosis processes.