Scientists believe that ancient ancestors of all animals were single celled eukaryotes that sometimes grew in colonies. The correct option among all the options that are given in the question is the second option or option "B".
The Cambrian Explosion resulted in the evolution of the first representatives of most animal phyla. The correct option among all the options that are given in the question is option "B".
Answer:
animal cells
Explanation:
animal cells have a sort of rounder shape to them
Phanerictic bc planerictic texture is sometimes referred to as coarse-granted igneous texture