Answer:
Jellyfish start off their life in the polyp stage. The stage we are used to seeing (e.g. the jellyfish looking stage) is called the medusa stage.
Explanation:
Look at this image and see how a jellyfish actually starts out as not free-swimming.
B) Bacteria has the highest reproductive potential
The units of evolution are populations and not individuals because a variation or a mutation in an individual is not sure to last or produce offsprings having the same variation or mutation. The proof that a species has truly evolved is when the variation has allowed the species to survive its environment and produce generations carrying the same variation.
Different chemicals such as steroids, antibiotics, and aspartame just to name a few