Final answer:
The MBL theory suggests that humans faced a metabolic bottleneck during their evolution as they transitioned to a more meat-based diet.
Step-by-step explanation:
The term MBL refers to "The Metabolic Bottleneck Late" which is a hypothetical concept in the field of human evolution. It suggests that our ancestors faced a bottleneck in their metabolic capacity as they transitioned from a primarily plant-based diet to a more meat-based diet. The theory proposes that due to this transition, humans experienced certain metabolic challenges that ultimately shaped our evolution.
If these changes occur to DNA in sperm or egg cells, they could be passed onto the next generation. Evolution: Evolution consists of changes in the heritable traits of a population of organisms as successive generations replace one another. It is populations of organisms that evolve, not individual organisms.
Evolution occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations.
Evolution is the process of accumulation of genetic differences in the living organism over the period and generating new varieties of living organisms. Examples of evolution: Darwin explained in his theory of evolution by natural selection, how nature selects a reproductively fit organism over others.