What is NOT part of the present-day solar system? A. the Sun B. the planets C. the solar nebula D. the planetary moons and rings

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

Can someone i have no idea of how to do this.

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.