How did the results of mendel's dihybrid crosses led him to formulate the law of independent assortment?

The answer is the presence of one trait did not affect the presence of another, With our modern understanding of genes, chromosomes, and cellular reproduction, we can explain the biological basis of Mendel’s observations and make pretty accurate predictions about the offspring that any given cross (short for crossbreeding) will produce.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.