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".
Reproduction is not essential for the survival of an individual organism. However, it is essential for the continuation of an organism's species. A species is a group of similar-looking organisms that can Page 3 interbreed and produce fertile offspring
They show evidence of other life beyond us, when we see fossils they give is info that can determine other scientific data that is important for human life
I think you might've forgotten something. There is no labels, pictures, or any options. Add some more stuff and I'd be able to help out.
Your answer is true
Hope this helps <3