When two organisms that were previously in a symbiotic or colonial relationship have their cells separated, the survival of the individual cells is possible due to their inherent capabilities and adaptations. Here are a few reasons why the cells are able to survive:
Cellular Autonomy: Each cell within the colonial organism possesses its own cellular machinery, including organelles such as mitochondria, ribosomes, and a nucleus. These structures enable the cells to carry out essential cellular functions, such as energy production, protein synthesis, and DNA replication, independently.
Genetic Information: The individual cells retain their genetic material, usually in the form of DNA. This genetic information contains the instructions necessary for the cells to perform their specific functions and maintain their survival. Even when separated from the larger organism, the cells can utilize this genetic information to continue their normal cellular activities.
Metabolic Adaptations: Cells within a colonial organism may have adapted to survive in different conditions or perform specific functions. These adaptations can include variations in metabolic pathways, nutrient uptake mechanisms, or resistance to environmental stresses. These adaptations allow the cells to sustain themselves and continue their metabolic processes even when separated.
Reproductive Potential: Depending on the colonial organism, individual cells may possess the ability to reproduce asexually or undergo cell division. This reproductive potential allows the cells to multiply and generate more cells, eventually forming colonies or new organisms.
It is important to note that while the individual cells may survive when separated, their long-term viability and functionality as a collective colonial organism may be compromised. The interdependence and cooperation between cells within the colony are essential for the overall survival and functioning of the organism as a whole.
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You and a friend were talking about the role of genes and the environment and your friend said, "DNA is destiny. The environment doesn't influence who someone becomes at all, it is all determined by genes." What can you tell your friend about the interaction of genes and environment? Include two examples discussed in class or the textbook to support your point.
Genes and the environment both contribute to a person's characteristics. A person's characteristics are not solely determined by genes but the environment also has an impact on who someone becomes. Two examples discussed in class or the textbook that support this point are intelligence and obesity.
The development of intelligence is influenced by both genes and the environment. Studies have shown that the genetic influence on intelligence increases with age. However, the environment is also crucial in developing intelligence. Studies have also shown that children who are raised in a stimulating environment, which includes exposure to language, reading, and other educational materials, have higher intelligence scores than children who are raised in a less stimulating environment.
Obesity is another example of how genes and the environment interact. Some people are more likely to become obese due to their genes. However, the environment also plays a significant role in determining whether someone becomes obese. For example, if someone with a genetic predisposition to obesity lives in an environment with limited access to healthy food and opportunities for physical activity, they are more likely to become obese than someone with the same genetic predisposition who lives in an environment that promotes healthy eating and physical activity.
In conclusion, the interaction of genes and the environment is an essential aspect of understanding human characteristics. DNA is not destiny, and the environment plays a significant role in shaping who someone becomes.
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