One of the conditions that must be met for Hardy-Weinberg equilibrium is the absence of mutations in a population. Mutations are permanent changes in the gene sequence of DNA. These changes alter genes and alleles leading to genetic variation in a population.Mutations may impact individual genes or entire chromosomes.
Explanation:
When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele frequencies will stay the same across generations.They are mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.
rapid movement of solid particles mixed with water: mudflow
slow movement of solid particles down a slope: creep
rapid movement of solid particles down a slope: landslide
rapid movement of solid particles mixed with water: earthflow
Explanation:
An earthflow is intermediate to mudflow and creep. It is the type of mass wasting that involves movement of solid particles saturated with water, not necessarily mixed with large quantities of it.
The answer is physically fit older people. this is because ageing causes changes to the brain size, vascalature and cognition. Brains shrinks with increasing age and there are changes at all levels of molecules morphology.