An empty truck and a fully loaded truck are next to each other at a traffic light. when the light turns green, the lighter truck increases speed more quickly. which of these best explains this situation?

Anew organism has been discovered. this organism has a bilaterally symmetric unsegmented body. it's capable of moving on its own with a muscular appendage and is encased in a large shell that seems to be attached to its body. based on this evidence, which phylum would this new animal likely be classified into? a. arthropoda b. echinodermata c. nematoda d. mollusca