Does regressive evolution support or invalidate the theory of evolution?

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Dominance the dominant allele doesn’t fully mask or hide the recessive. for example, a red carnation with a white carnation will produce a carnation. one gene one trait. well most of the time than one gene controls a trait. we are all different but genetically speaking we are % similar with regards to genetic makeup.

What is the name of the two satelites on mars