What ways did Gregor Mendel's research strengthen the theories of Charles Darwin?

How does an arch support itself? What kind of organism is grass? A major group of organisms that are in general multicellular capable of locomotion and responsive to their environment and feed by consuming other organisms? How do you change the word kills into ability or cleverness? What is the Size of field of view using a dissecting microscope? Do red blood cells carry oxygen to the body? What will the next human species look like? What tissue is the effector? Can you have implantation bleeding 7 days after fertilization and again around the time of your period? The three major subdivisions of the product decision are? What is the difference between cells? True or false Ribosomes differ from other organelles in that they are membrane bound? What is a DNA terminator sequence? At what age do you get your Adam's apple? What is homeothesis? What cell part deals with Diffusion osmosis and active transport? What tonsils are located at the back of the tongue? What is the sum of all external conditions that affect a person? A dogs phenotype can be determined by? What help dissolve clot in our bodies?

What ways did Gregor Mendel's research strengthen the theories of Charles Darwin?