Que consecuencias trae la radiación uv a los seres vivos

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

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

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.