Darwinism explains all the following except

Explanation:
Darwinism, also known as the theory of evolution by natural selection, is a concept proposed by Charles Darwin to explain how species change over time. It is based on the idea that individuals with certain advantageous traits are more likely to survive and reproduce, passing on those traits to future generations. While Darwinism explains many aspects of evolution, it does not account for the inheritance of variations from parents to offspring through genes.

Offspring with better traits that overcome competition are best suited for the environment: Darwinism explains that individuals with beneficial traits have a better chance of surviving and reproducing in their environment. These advantageous traits can help them compete for resources, evade predators, or adapt to changing conditions. Over time, these traits become more common in the population, as individuals with these traits have a higher likelihood of passing them on to their offspring.

Within each species, there are variations: Darwinism recognizes that individuals within a species exhibit variations. These variations can be physical, behavioral, or physiological and are the result of genetic differences. Some individuals may have traits that give them an advantage in their environment, while others may have traits that are less advantageous. These variations provide the raw material for natural selection to act upon.

Organisms tend to produce more offspring than can survive: Darwinism also explains that organisms tend to produce more offspring than can survive. This is due to the intense competition for limited resources within an environment. Only a fraction of the offspring will survive to reproduce, as they must compete with each other and face various challenges such as predation, disease, and environmental factors.

Variations may or may not be inherited from parents to offspring through genes: This statement is not fully explained by Darwinism. While Darwinism recognizes that variations exist within a species, it does not specifically address how these variations are inherited through genes. The understanding of inheritance and genetics came after Darwin's time and was further developed by the work of Gregor Mendel and the discovery of DNA. The mechanism of inheritance through genes and the passing on of specific traits from parents to offspring is explained by the field of genetics, which complements Darwinism in explaining the complexities of evolution.

In conclusion, Darwinism explains the concepts of advantageous traits, variations within species, and the overproduction of offspring. However, it does not provide a detailed explanation of how variations are inherited from parents to offspring through genes, which is explained by the field of genetics.