Examlex
Many animal rights activists and "Hunger Watch" groups have claimed that if beef cattle and other sources of meat were eliminated,more people could be fed.What is the ecological theory behind the argument that humans should eat a greater proportion of their food "lower in the food chain"? Also speculate about a situation in which this principle may be less applicable.
Natural Selection
The process in which organisms better adapted to their environment tend to survive and produce more offspring, leading to the gradual evolution of species.
Molecular Variation
Differences at the molecular level among individuals, which can include variations in DNA sequences, genes, and proteins.
Genetic Bottleneck
A significant reduction in the genetic diversity of a population due to a large decrease in its size, potentially affecting its survival and evolution.
Mitochondrial DNA
The DNA located in mitochondria, the energy-producing structures within cells, inherited only from the mother and used to trace maternal lineage.
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