It’s D a single stranded structure consisting of unlabeled DNA from the gene
The Cambrian explosion was a period at the Pre-Cambrian boundary of the geologic time scale at 542 Ma. At this boundary, the fossil record shows that animals suddenly appeared in a dramatic radiation of life. A radiation is the relatively rapid development of new types of organisms that derive from a common ancestor. The Cambrian explosion is important because it marks the origination of all major animal groups called phyla.
Mantle convection causes tectonic plates to move around the Earth's surface.
It would be making soda I'm pretty sure