Which occurence represents an example of evolution?

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.