20 points and brainliest if answered right

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

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome